Bogey is a term that today is usually only heard in the air force or on the golf course. Both these aviation usages date to World War II, but the term bogey is much, much older, coming from an old Scottish word for a ghost.
That word is bogle, often spelled bogy, bogil, bogie, and other ways. The term dates at c.1507, in William Dunbar’s The Tretis of the Twa Mariit Wemen and the Wedo (The Treatise of the Two Married Women and the Widow):
The luif blenkis of that bogill, fra his blerde ene
(As Belzebub had on me blent) abasit my spreit.
(The love blink of that bogle, from his bleared eyes
(As Beelzebub had me blinded) abased my spirit.)1
Bogle is the source for our modern bogeyman or boogieman.
Copyright 1997-2016, by David Wilton