baboon: [14] The origins of baboon are obscure, but it seems that the notion underlying it may be that of ‘grimacing’. Baboons characteristically draw back their lips in snarling, revealing their teeth, and it has been speculated that there may be a connection with Old French baboue ‘grimace’. However that may be, it was certainly in Old French that the word first surfaced, as babuin, and originally it meant ‘gaping figure’ (as in a gargoyle) as well as ‘ape’. This alternative meaning was carried over when the Old French word was borrowed into English, where it remained a live sense of baboon until the 16th century.
