- vinegar (n.)
- early 14c., from Old French vinaigre "vinegar," from vin "wine" (from Latin vinum; see wine (n.)) + aigre "sour" (see eager). In Latin, it was vinum acetum "wine turned sour;" compare Greek oxos "wine vinegar," which is related to oxys "sharp" (see acrid). Related: Vinegary; vinegarish.
