A Language Gift List

9 December 2005

So what do you get that word lover for Christmas (or whatever holiday you celebrate)? Here are a few suggestions.

Of course, topping your gift list should be Word Myths: Debunking Linguistic Urban Legends, by David Wilton, Oxford University Press, 2004, $21.95. Not only will you be giving a great gift, but you’ll be putting some ducats into my pocket.

Susie Dent’s Fanboys and Overdogs: The Language Report, Oxford University Press, 2005, is a look at the latest trends in the langauge.

Lovers of political jargon will enjoy Hatchet Jobs And Hardball: The Oxford Dictionary Of American Political Slang, edited by Grant Barrett, Oxford University Press, 2004, $25.00. It’s a great source for the origins of political terms. Barrett is also the editor of doubletongued.org.

If you’re looking for a comprehensive history of the English language to give to someone, you can’t do much better than David Crystal’s The Stories of English, Overlook, 2004, $15.95. Or try Melyvyn Bragg’s The Adventure of English: The Biography of a Language, Arcade, 2004, $27.95.

More limited in the scope of its coverage is Do You Speak American, by Robert MacNeil and William Cran, Harvest Books, 2004, $13.00. It’s the companion book to the PBS television documentary about American dialect.

If it’s dictionaries you want to know more about, there are two excellent books by Simon Winchester on the history of the Oxford English DictionaryThe Meaning of Everything: The Story of the Oxford English Dictionary, Oxford University Press, 2004, $13.95, is a "biography" of the famous dictionary. The Professor and the Madman: A Tale of Murder, Insanity, and the Making of The Oxford English Dictionary, HarperCollins, 1998, $13.95, is the story of one peculiar contributor the dictionary.

I must confess, I haven’t read this next one, but Michael Quinion is the editor of worldwidewords.org and he does good work. So I have no problems including Ballyhoo, Buckaroo, and Spuds: Ingenious Tales of Words and Their Origins, Smithsonian Books, 2004, $19.95.

Going Nucular: Language, Politics, and Culture in Controversial Times, by Geoffrey Nunberg, Public Affairs, 2004, $18.95, is a collection of NPR radio essays by the Stanford linguist.

And if language and the brain is your bag, you can’t go wrong with Steven Pinker’s classic The Language Instinct: How the Mind Creates Language, Perennial Classics, 1994, $15.00.

It’s not so much about language, but something that any language lover would enjoy is The Complete New Yorker: Eighty Years of the Nation’s Greatest Magazine, Random House, 2005, $100. It’s a collection of DVD-ROMs containing the complete archives the great magazine. You can find it for about $60 and it’s well worth the price.

Also available electronically is Samuel Johnson’s A Dictionary of the English Language, Octavo, 2005, $50.00. This edition is complete and on CD-ROM.

Latin Legacies

2 December 2005

If you pay attention to the topics dealt with in this newsletter each week, you can get a glimpse into my life. Recently, I’ve been watching the excellent HBO series Rome, about Julius Caesar and playing the extremely addictive computer game Rome: Total War. These two sources are the inspiration for this week’s article.

We all know that many English words are derived from Latin roots. Most commonly, these words come to us from Old French as a result of the Norman Conquest of England in 1066 or are modern scientific and technical terms created in modern times from Latin roots. But there are a few that come to us directly and mostly unaltered from the traditions and practices of ancient Rome. Here are some of those words.

censorn., a Roman official charged with maintaining the census and supervising public morals. From censere, to account, to reckon. English use of the term, other than references to the ancient Roman office, dates to 1592. By 1644, the word was being applied specifically to one who reviews and expurgates literature. Use as a verb is much more recent, dating only from 1882.

cohortn., a unit of soldiers, one tenth of a legion. In use to mean a group of modern soldiers from c.1500 and a group united by a common bond from 1719. The statistical sense, meaning a group sharing a common statistical characteristic, such as being born in the same year, dates to 1944. Since 1952, the word, especially in American usage, has been used to mean an assistant or accomplice. This individual meaning is considered by some to be an erroneous usage.

consuln., one of two officials, chosen by the Senate, who ruled the Roman Republic. From con- together + sal walk, literally those who walk together. The title, without the attendant power, was maintained during the Empire. Starting in 1601 it began to be used in English to mean a representative of the foreign merchants in a port or city who negotiates with the government and promotes commercial relationships. This grew into the current sense of a diplomat who assists citizens abroad and promotes commerce with his home nation.

decimatev., Roman military punishment for mass desertion or cowardice in battle where one in ten soldiers in a unit would be killed. In English use since 1600 to mean to destroy one tenth of something and later used more loosely meaning to destroy something.

dictatorn., Roman official with absolute authority to rule the state during periods of emergency. Upon recommendation of the Senate, the Consuls would nominate a dictator who would rule for no more than six months. Sulla, in 82 BC, extended the term of office for several years. Julius Caesar made himself dictator-for-life in 45 BC. The office was abolished after his assassination. Traditionally, Roman dictators would resign after addressing the emergency at hand without waiting for their six-month term to expire. It has been in modern use since c.1592.

duke, n. this is one that is modified in form somewhat from the Latin word. It is from dux, literally leader, the commander of two or more legions. It’s been in English use from the 14th century as a title of nobility ranking below a prince.

forumn., a Roman marketplace. From 1735 it has meant a place of public discussion. The use of the word to apply to on-line or electronic discussions dates to 1971. Starting in 1848 it acquired a legal sense meaning a court or jurisdiction. The term forum shopping, meaning to attempt to find a jurisdiction that will be most favorable to your case, is from 1954

legaten., the officer commanding a legion or the governor of a province. It has been used since the 12th century to mean a representative of the pope and since the 14th century to mean a diplomat in general.

legionn., a Roman military unit composed of (depending on the era) from 3000 to 6000 men. From the Latin legio, or levy. From before 1300 to refer to a multitude. From 1598 to refer to specific modern military units.

pantheon, n., a temple in Rome, noted for its great dome, consecrated to all the gods. From the Greek pan-, meaning all + theos, god. In modern use, it is used to refer to a group of people or things that are venerated or have great importance, 1834.

pontiffn., high priest. A pontifex was one of several high priests in Roman religion, the collegium of the Pontifices was led by the Pontifex Maximus. From pontbridge, + fic, to make, literally a bridge builder. But the first element is possibly a corruption of the Etruscan puntis, or propitiatory offering. Pontiff has been applied to bishops, esp. the Bishop of Rome, since the 17th century. One of the official titles of the Pope is Pontifex Maximus.

senaten., a body that ruled the Roman republic, originally composed of representatives elected by the patrician class, later by appointment and by men who had held specific offices. Technically, the Roman Senate was not a legislative body and could only advise the consuls and people’s assemblies, but in practice the Senate’s advice was binding. Literally, senate means a council of old men. It has been applied to various governing bodies in Europe from the 14th century and most famously is the name used for the upper house of the US Congress.

tribunaln., from tribune, a Roman official. A tribune of the people was one of several officials who represented the interests of the plebian class. A military tribune was one of six officers in a legion. The tribunal was a raised platform from which a tribune would give commands and adjudicate disputes. It has been used since 1590 to mean a court.

triumviraten., a group of three rulers in ancient Rome. The First Triumvirate was Julius Caesar, Pompey, and Crassus and dominated Roman politics from 59-53 BC, ending with the death of Crassus. The Second Triumvirate consisted of Octavian (later Augustus), Mark Antony, and Lepidus. Unlike the First, this Second Triumvirate was formalized in law and ruled Rome as a tripartite dictatorship starting in 43 BC, although Lepidus was stripped of most of his power in 36 BC when he attempted to take up arms against Octavian. Octavian and Antony continued to rule until the expiration of the triumvirate’s term in 33 BC Subsequently, the two went to war with each other, culminating in the sea battle at Actium where Octavian defeated Antony and Cleopatra and, all his political rivals gone, had himself appointed the first emperor, ending the Roman Republic. Triumvirate has been in use since 1584 to mean any rule by three authorities.

Trafalgar & The Language of the Age of Sail, Part 1

21 November 2005

Two hundred years ago today, on 21 October 1805, the Battle of Trafalgar was fought off the coast of Spain. A fleet of 27 Royal Navy ships under the command of Vice Admiral Horatio Nelson defeated a fleet of 33 French and Spanish ships under the command of Vice Admiral Pierre Charles Silvestre de Villeneuve. In the battle, 22 French and Spanish ships were captured or sunk. No British ships were lost.

Nelson was killed at the height of the battle as his flagship, HMS Victory, grappled with the French ships Bucentaure and Redoubtable. Villeneuve was captured and eventually paroled back to France. Upon his return he was found dead in his room at an inn, stabbed in the chest six times. The death was ruled a suicide.

Even though the Napoleonic wars continued for another ten years, the threat of Napoleon’s invading England was ended at Trafalagar that October. But more than this, Trafalgar cemented British control of seas for a hundred years and bestowed on the Royal Navy an aura of invincibility.

Regular readers of the Wordorigins site and those who’ve read Word Myths are familiar with CANOE, the jocular Conspiracy to Attribute Nautical Origins to Everything, the habit of naval enthusiasts to find nautical etymologies for all sorts of words and phrases. We’re all familiar with the more common terms that are falsely given nautical origins. But there are a large number of words and phrases that do have nautical origins or relate to the Age of Sail. So in honor of the battle fought 200 years ago, here is a selection of words and phrases with true nautical connections.

admiraln., a naval officer of the highest rank, c.1425, in earlier use to mean an Arab emir or prince, c.1205. From Arabic, via Old French, amara, to command or order, related to emir. Early English use was in the phrase amyrel (admiral) of the sea, with the latter part of the phrase eventually dropped.

ahoyint., a nautical greeting call, 1751. A combination of the two interjections a + hoy.

avastv., imperative meaning stop, cease, 1681. Probably from the Dutch hou’vast, hold fast.

ballyhoo of blazes, n., a sailor’s term of contempt for an unworthy ship, 1831.

barquen., a ship, applied to various types at different times, 1473. Also bark. From the French. The word appears in Latin, but may ultimately be Celtic in origin.

beat to quartersv., imperative ordering the crew to battle stations, 1836. From the use of a drum to spread the command throughout the ship.

bridgen., deck or platform from which officers direct the movement of the ship, 1843. Originally a narrow, raised platform that ran from side to side of the ship.

brign., 1. a two-masted, vessel, square-rigged on the foremast and fore-and-aft rigged on the mainmast, 1720. 2. a naval jail, originally on board a ship, 1852. An abbreviation of brigantine.

brigantinen., a type of ship, originally a ship equipped with both sails and oars, 1525; later, a ship of the type described in brig, above, 1695.

captainn., an officer commanding a ship, the naval rank below admiral, 1554. In earlier use to mean a chief or leader, a military commander, c.1380. From the Latin capitaneus, headman, chief, via Old French, ultimately from Latin caput, head.

caraveln., a type of sailing ship, applied to various types at different times, usually a small, light ship, 1527. The form carvel was in earlier use, 1462. From the Italian caravella, via the French, which is probably a diminutive of the Spanish caraba, which is from Greek via Latin.

close-hauledadj., sailing as much into the wind as possible, close to the wind, 1769.

cockpitn., the aft portion of the lowest deck of a ship, normally the quarters of junior officers, in battle used as a surgery, 1706.

corvetten., a small, single-decked warship, 1636. Later applied to a small, anti-submarine warship, 1940. From the French, ultimately from the Latin corbita, a slow sailing ship, corbis being a basket.

crow’s nestn., a barrel or similar box affixed to a masthead as a shelter for a look-out, usually used on a whaler.

dandyfunkn., hard tack soaked in water and baked with fat and molasses, 1883.

deckn., a covering for a ship that also serves as a floor for the spaces above, 1513. Originally, the term referred to the covering, later shifting to the floor. Probably from the Middle-Dutch dec, covering or roof.

dog-watchn., one of two abbreviated watches, from 4 p.m. to 6 p.m. and 6 p.m. to 8 p.m., 1700. By creating seven watches instead of six, the watches shift each night. From a reference to the brief, light sleep of a dog. In Patrick O’Brian’s nautical novels it is punned that dog-watches are so called because they are curtailed.

England expects that every man will do his dutyc.phr., message sent to his fleet by Nelson just prior to the Battle of Trafalgar. Nelson originally penned, "England confides that..." but confides was not in the signal book and so the phrase was changed to make it easier to send by signal flag.

ensignn., 1. a flag flown from a naval vessel, c.1400. 2. a naval officer of the lowest rank, originally a soldier who served as standard bearer. From the French, corresponding to insignia.

Fanny Adamsn., sailor slang for canned meat, 1889. From the name of a woman murdered in 1867.

fighting topn., platform around the mast of a warship used by marines and sailors to fire down on opposing ships, 1896.

first rateadj., describing the most powerful warships, the Royal Navy categorized ships into six rates according to the number of guns carried on board. Also second rate, third rate, etc.

forecastlen., a raised deck in the bow of a warship, used as height to dominate opposing ships, as if it were a castle. Often spelled fo’c’sle to reflect the nautical pronunciation.

frigaten., a warship rated just below a ship of the line, 1630. In earlier use to refer to a light, fast vessel. The etymology is unknown.

(to be continued next week)

Naming the Planets, Part 2

18 November 2005

A question to the Wordorigins.org discussion forum a week or so ago asked about the origins of the names of the planets. The "official" names of objects in the solar system are assigned by the International Astronomical Union (IAU), a global association of astronomers. The IAU follows several conventions in naming planets and moons, the main ones being that planets are given names of Roman mythological beings and moons are given Greek mythological names associated with the Greek equivalent of the Roman god. Many of these names did not originate with the IAU, but have borne the names of these deities dating back into antiquity. There are exceptions to the IAU naming conventions. Shakespearean names are assigned to moons of Uranus and the occasional Norse or Inuit mythological name appears here and there.

Here is the second half of our examination of the names of the planets and moons.

Saturn, the sixth planet from the sun and the second largest, is named after the king of the Titans, the father of Jupiter. Saturn’s Greek counterpart is Cronos. English use of Saturn as the planetary name dates back to Old English. The adjective is Saturnian, 1557.

Like Jupiter, Saturn has many satellites. The Saturnian moons tend to be named after Titans from myth, although there are many exceptions:

  • Pan, named after the Greek god of nature. Discovered by astronomer Mark Showalter in 1990 from Voyager photos.

  • Atlas, after the Titan condemned to support the heavens on his shoulders. Discovered by Richard Terrile in 1980 from Voyager photos

  • Prometheus, Greek for foresight, after the Titan who gave fire to man. Discovered by S. Collins in 1980 from Voyager photos

  • Pandora, after the first woman in Greek mythology. Discovered by Collins in 1980 from Voyager photos.

  • Epimetheus, Greek for hindsight, brother of Prometheus. This moon was first observed by Walker in 1966, but was confused with Janus (see next). In 1977, Fountain and Larson demonstrated they were separate objects.

  • Janus, after the Roman god of doorways. Discovered by either Walker or Audoin Dolfus in 1966. Dolfus sighted it a few hours before Walker, but it is uncertain whether Dolfus saw Janus or Epimetheus

  • Mimas, after a Titan slain by Hercules. Discovered by William Herschel in 1789.

  • Enceladas, after a Titan slain by Athena. Discovered by Herschel in 1789

  • Tethys, after a Titaness and sea goddess. First seen by Giovanni Cassini in 1684.

  • Telesto, after the daughter of Tethys. Discovered by Smith, Reitsma, Larson and Fountain in 1980.

  • Calypso, after the sea nymph who delayed Odysseus for seven years. Discovered by Pascu, Seidelmann, Baum, and Currie in 1980

  • Dione, after the mother of Aphrodite. Spotted by Cassini in 1684

  • Rhea, after the sister and wife of Cronus, the mother of Zeus. Discovered by Cassini in 1672.

  • Titan, the largest of the Saturnian satellites, is named after the family of giants overthrown by Zeus. Christiaan Huygens discovered this moon in 1655.

  • Hyperion, after a Titan. Discovered by William Bond and William Lassell in 1848.

  • Iapetus, a Titan, the father of Prometheus and Atlas. Discovered by Cassini in 1671.

  • Phoebe, after the daughter of Uranus and Gaia. Discovered by William Pickering in 1898.

  • Several Saturnian moons, discovered in 2000, were given names by IAU in 2004, Norse, Gallic, and Inuit names represent satellites in three different inclination groups

    • Ymir, Norse giant

    • Paaliaq, Inuit giant

    • Tarvos, Gallic giant

    • Ijiraq, Inuit giant

    • Suttungr, Norse giant

    • Kiviuq, Inuit giant

    • Mundilfari, Norse giant

    • Albiorix, Gallic giant

    • Skathi, Norse giantess

    • Erriapo, Gallic giant

    • Siarnaq, Inuit giant

    • Thrymr, Norse giant

Uranus, named after the Greek deity of the heavens, husband of Gaia and father of Cronus, is the seventh planet and the first to be discovered in modern times. It was first sighted by Herschel in 1781. Herschel named it the Georgium sidus (the Georgian planet) in honor of King George III. The name Uranus was proposed by Johann Bode sometime before 1802. The adjective is Uranian, 1844.

Uranian moons follow a different naming convention than most objects in the solar system. Instead of being named after characters in Greco-Roman myth, they are named after Shakespearian characters:

  • Cordelia, after King Lear’s daughter. Discovered by Voyager 2 in 1986.

  • Ophelia, after Polonius’ daughter from Hamlet. Discovered by Voyager 2 in 1986.

  • Bianca, after Katherine’s sister in The Taming of the Shrew. Discovered by Voyager 2 in 1986.

  • Cressida, after the title character in Troilus and Cressida. Discovered by Voyager 2 in 1986.

  • Desdemona, after Othello’s wife. Discovered by Voyager 2 in 1986.

  • Juliet, after the heroine of Romeo and Juliet. Discovered by Voyager 2 in 1986.

  • Portia, after a character in Merchant of Venice. Discovered by Voyager 2 in 1986.

  • Rosalind, after a character in As You Like It. Discovered by Voyager 2 in 1986.

  • Belinda, taking a break from the Bard, this moon is named after a character in Pope’s The Rape of the Lock. Discovered by Voyager 2 in 1986.

  • Puck, after the fairy in A Midsummer Night’s Dream. Discovered by Voyager 2 in 1986.

  • Miranda is the innermost of the Uranian large moons and is named after a character in The Tempest. Discovered by Gerard Kuiper in 1948.

  • Ariel, named after a spirit in The Tempest, was discovered by William Lassell in 1851.

  • Umbriel is another Uranian moon that is not named after a Shakespearian character. Again, the name is from The Rape of the Lock. Discovered by Lassell in 1851.

  • Titania was queen of the fairies in A Midsummer Night’s Dream. It was discovered by Herschel in 1787.

  • Oberon, was king of the fairies and husband to Titania. It was also discovered by Herschel in 1787.

  • CalibanSycoraxTrinculoProsperoSetebos, and Stephano, were all discovered in the late 1990s and named after characters in The Tempest.

  • Several other moons of Uranus have been discovered, but have yet to be named.

The eighth, and some would say last, planet is Neptune, named for the Roman god of the sea. It was discovered by Johann Galle and Heinrich d’Arrest in 1846, although Galileo had seen in 1613, but mistook it for a star. Due to Pluto’s highly eccentric orbit, Neptune is sometimes the outermost planet. The adjective is Neptunian, 1849.

As one might expect for a planet named after the god of the sea, Neptunian moons all have a watery flavor to their names:

  • Naiad, named after type of water nymph, was discovered in 1989 by Voyager 2.

  • Thalassa, named after the Greek personification of the sea, another name for Tethys (see Saturnian moons), was also discovered in 1989 by Voyager 2.

  • Despina, a third moon found in 1989 by Voyager 2, is named after a nymph, the daughter of Poseidon, 1989 by Voyager 2.

  • Galatea is named for the daughter of the cyclops Polyphemus, a granddaughter of Poseidon, not after the statue of the same name carved by Pygmalian that came to life. It, too, was discovered in 1989 by Voyager 2.

  • Larissa, is named after the daughter of Pelasgus. No specific myths connected with her. It is yet another Voyager 2 moon.

  • Proteus, is named after the shape-changing sea-god, the sixth and last moon discovered by Voyager 2 in 1989.

  • Triton, is the only large moon of Neptune. It is named after a god of the sea, the son of Poseidon. It was discovered in 1846 by Lassell.

  • Nereid, the name for the fifty daughters of the Titan Nereus, was found in 1949 by Kuiper.

Pluto was discovered in 1930 by Clyde Tombaugh and named after the Roman god of the underworld. Astronomers are currently debating whether Pluto should be classified as a planet because of its small size and its orbit that is inclined outside the plane of the other planets. Pluto has three moons, one named. Charon, discovered in 1978 by Jim Christy, is named after the ferryman who takes departed souls over the river Acheron into Hades

The recently discovered Sedna is so far out, more than twice as far from the sun as Pluto, that its orbital period is 10,500 years. Slightly smaller than Pluto, Sedna was discovered in 2004 and named after the Inuit goddess of the sea. Given the controversy over Pluto’s planetary status, it is unlikely that Sedna will be classified as a planet.

In June of this year, astronomers Mike Brown, Chad Trujillo, and David Rabinowitz announced the discovery of the tenth planet. The planet currently has a designation of 2003 UB313. A permanent name has been proposed and is under review by the IAU, but what that is and whether the IAU will accept it is unknown. Little is known about 2003 UB313, although it is definitely bigger than Pluto—the best guess puts it at about 125% of Pluto’s size or somewhat larger than Triton. 2003 UB313 orbits the sun at a distance of 97 astronomical units, making it the most distant object known to orbit the sun. (Earth orbits at one astronomical unit; Pluto is at about 40, and Sedna is at 90.) In September, a moon orbiting 2003 UB313 was found.

Hypothetical Objects

Over the years, the existence of various objects in the solar system have been postulated but never found to actually exist. Here are some that went so far as to have (unsanctioned by the IAU) names.

Vulcan was the name of a planet believed, based on perturbations in Mercury’s orbit, to orbit between the sun and Mercury. It was named by Urbain Le Verrier in 1859 after the Roman blacksmith god. In 1916, Einstein’s General Theory of Relativity explained Mercury’s orbital oddities without need for Vulcan to exist. In 1970-71, the belief in Vulcan was temporarily revived when astronomers observed some faint objects within Mercury’s orbit, but these turned out to be comets passing close by or striking the sun.

Neith is a supposed moon of Venus. It was first "sighted" by Cassini in 1672. It was "seen" by several astronomers between that year and 1892. Controversial because not all who looked for it saw it, Neith is now known not to exist and the "sightings" were confusions with stars and other objects. Neith was the Egyptian goddess of war and the hunt.

Themis is a supposed moon of Saturn. "Sighted" by Pickering in 1905, it remained in some almanacs into the 1960s. Themis was a Titan, the mother of the three Fates.

Nemesis is a faint star believed by some to be the Sun’s binary companion at a distance of about 1.4 light years. According to those who believe in its existence, every 30 million years Nemesis comes close enough to disturb the Oort cloud, sending a shower of comets into the inner solar system and causing impacts on Earth and the other planets. The alleged star was named in 1984 after the Greek goddess of retribution. No firm evidence for the existence of Nemesis has ever been presented and its existence is highly doubtful.

Naming the Planets, Part 1

11 November 2005

A question to the Wordorigins.org discussion forum this past week asked about the origins of the names of the planets. The "official" names of objects in the solar system are assigned by the International Astronomical Union (IAU), a global association of astronomers.

The IAU follows several conventions in naming planets and moons, the main ones being that planets are given names of Roman mythological beings and moons are given Greek mythological names associated with the Greek equivalent of the Roman god. Moons tend be named after goddesses, while planets, with the exception of Venus, are all male gods. Many of these names did not originate with the IAU, but have borne the names of these deities dating back into antiquity. The naming conventions are not rigid and there are exceptions. For example, Shakespearean names are assigned to moons of Uranus and in recent years the occasional Norse or Inuit mythological name has been assigned to newly discovered objects.

The largest and central object in the solar system is the sun, the nearest star to the Earth. Sun is an Old English word from a common Germanic root. Our local star is also known as Sol, the Latin name, which has been in English use since c.1450. The associated adjective is solarHelio-, after helios, the Greek name for the sun, has been used as a combining form, as in heliocentric, since 1804.

Mercury, the planet closest to the sun and the fastest to orbit, is named after the Roman messenger god. The name in English usage dates back to Old English. The adjective is Mercurian, c.1576. The ancient Greeks called the planet by two names, even though they knew it to be one object, Apollo when seen in the morning and Hermes, the Greek counterpart to the Roman god, when seen in the evening.

Venus, the second planet from the sun and Earth’s nearest neighbor, is named after the Roman goddess of love. English usage of the name dates to c.1290. The adjective is Venusian, 1874. Early uses of the adjectival form are primarily found in science fiction, with astronomical use dating from 1913. The ancient Greeks called it by two names, Eosphorus, morning star, and Hesperus, evening star, although, like Mercury, they knew it was one body.

Earth dates back to Old English and is from a common Germanic root. The root is probably related to the Greek era, but no other non-Germanic cognates are known and the exact relationship with the Greek word is uncertain. Earth was not used in the sense of a planet, like the others, until c.1400. The adjective is Terran, 1953, and is most commonly found in science fiction. The adjective is after Terra, the Latin name for earth.

The earth is the first planet to have a natural satellite, called the moon. The word is found in Old English, from a common Germanic root. Moon has been used to denote a satellite of a planet other than earth since 1665. The earth’s moon is sometimes known as Luna, the Latin name in English use since before 1529. The adjective is lunar, 1626. Unlike the other astronomical names, earth and moon are often not capitalized.

Mars, the fourth planet from the sun, is named after the Roman god of war. The name has been in English use since c.1300. The adjective is Martian, c.1395. Mars has two small satellites, Phobos (fear) and Deimos (panic), the names of Ares’ sons, Ares being the Greek counterpart to the Roman diety.

Between Mars and Jupiter are the asteroids, named by astronomer William Herschel in 1802, from the Greek aster (star) + -oid (like). There are probably over a million of these rocks, of which several hundred thousand have been given alphanumeric designations by the IAU. Some asteroids are named. The largest is Ceres, after the Greek god of agriculture. At 933 km in diameter, Ceres contains 25% of the mass of all the asteroids combined.

Jupiter is the fifth and largest planet, named after the Roman king of the gods. The astronomical name has been in English use since c.1290. The planet is sometimes called Jove, c.1374, the poetical name of Jupiter. The adjective is Jovian, 1794

Most of Jupiter’s moons are named after paramours of Zeus, the Greek equivalent to the Roman god. It is well that Zeus enjoyed the ladies, because Jupiter has 27 moons. The Jovian moons are:

  • Metis, after first wife of Zeus, discovered in 1979 by astronomer Stephen Synnott of the Voyager 1 project.

  • Adrastea, a daughter of Jupiter, discovered in 1979 by David Jewett of the Voyager 1 project.

  • Amalthea, the nymph who nursed Jupiter, discovered by Edward Barnard in 1892.

  • Thebe, nymph daughter of river god Asopus, discovered in 1979 by Synnott.

  • Io is the innermost of the Galilean moons, so-called because they were independently discovered by Galileo the German astronomer Simon Marius in 1610. Named after a lover of Zeus who was turned into a heifer to hide her from Hera, his jealous wife, Marius named this and all the Galilean moons.

  • Europa, was another lover of Zeus, is the next Galilean moon.

  • Ganymede, the largest moon in the solar system, has a diameter larger than Mercury although smaller than that planet in mass. It is named for the Trojan boy who, because of his beauty, was made cupbearer to the gods.

  • Callisto is named after a nymph lover of Zeus who was turned into a bear by Hera. In the myth, Zeus placed her in the sky as the constellation Ursa Major. Callisto is the outermost of the Galilean moons.

  • Leda is the smallest of Jovian satellites. It is named for the queen of Sparta, who was the mother of Polydeuces (Pollux) and Helen of Troy by Zeus and of Castor and Clytemnestra by her mortal husband. Astronomer Charles Kowal discovered the moon in 1974. Leda and the next three satellites may be the remains of an asteroid captured by Jupiter and broken up.

  • Himalia is named for the mother of three of Zeus’ children. It was discovered by Charles Perrine in 1904.

  • Lysithea was another lover of Zeus. The satellite was discovered by Seth Nicolson in 1938.

  • Elara, was a lover of Zeus. Discovered by Perrine in 1904

  • Ananke, was yet another lover of Zeus, the mother of Adrastea. Nicolson discovered this one in 1951

  • Carme was also discovered by Nicolson, but in 1938. It was named for a lover of Zeus, of course.

  • Pasiphae was the wife of King Minos of Crete and mother of the Minotaur. It was discovered by Philibert Melotte in 1908

  • Even Zeus occasionally struck out. Sinope was a woman who spurned the god’s advances. Nicolson discovered this one too in 1914

  • Eleven small moons, recently discovered, were given names by IAU in 2004, a mix of daughters and lovers of the god:

    • Callirrhoe, stepdaughter

    • Themisto, lover

    • Megaclite, lover

    • Taygete, lover

    • Chaldene, lover

    • Harpalyke, lover

    • Kalyke, lover

    • Iocaste, lover

    • Erinome, lover

    • Isonoe, lover

    • Praxidike, lover

    • Autonoe, lover

    • Thyone, lover

    • Hermippe, lover

    • Aitne, lover

    • Eurydome, lover

    • Euanthe, lover

    • Euporie, daughter

    • Orthosie, daughter

    • Sponde, daughter

    • Kale, daughter

    • Pasithee, daughter

Our look at the names of the planets and moons will continue next week, starting with Saturn, the sixth planet.