Buck, the slang term for a dollar, almost certainly is a clipped form of buckskin; buckskins being used as units of commerce on the American frontier. We can see the semantic development in the following citations.
From James Buchanan’s 1824 Sketches of the History, Manners, and Customs of North American Indians:
Each buck-skin one dollar.
From the 1826 Narrative of William Biggs, While He Was a Prisoner With the Kickepoo Indians:
McCauslin then sent for the interpreter, and the indians asked 100 Buckskins for me, in merchandize...the indians then went to the traders houses to receive they pay, they took but seventy bucks worth of merchandize at that time.
From Charles Cist’s 1841 Cincinnati in 1841:
They had sold the Indians whiskey that had frozen in the cask, before they reached their camp; they made an Indian pay for a rifle gun thirty, the Indians say forty, buck-skins, which they value at one dollar each, besides a horse of fifteen pounds price.
From Samuel Prescott Hildreth’s 1848 Pioneer History:
On the frontiers, and especially among the Indians, the value of property was estimated in bucks, instead of dollars or pounds—a buck was valued at one dollar. A copy of the following certificate, recorded in Colonel Morgan’s journal, among several others of the same tenor, is worth preserving:
“I do certify, that I am indebted to the bearer, Captian [sic] Johnny, seven bucks and one doe, for the use of the states, this 12 April 1779.”
From Henry Howe’s 1851 Historical Collections of Ohio:
A muskrat skin was equal to a quarter of a dollar; a racoon skin, a third of a dollar; a doe skin, half a dollar, and a buck skin, “the almighty dollar.”
And finally from James Wickes Taylor’s 1854 History of the State of Ohio: First Period, 1650-1787:
The English said we should buy everything of them, and since we had got saucy, we should give two bucks for a blanket3 which we used to get for one: we should do as they pleased, and they killed some of our people to make the rest fear them.
3 The skin of a buck was “legal tender,” in the wilderness, for a dollar.
See also sawbuck.
Copyright 1997-2015, by David Wilton