Vinegar
来自Big Physics
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Middle English: from Old French vyn egre, based on Latin vinum ‘wine’ + acer ‘sour’.
wiktionary
From Middle English vynegre, from Old French vinaigre from Old French vyn egre, based on Latin vīnum(“wine”) + Latin acer(“sour”). Displaced Old English æċed.
etymonline
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," acetum for short (see acetic), also used figuratively for "wit, shrewdness;" and compare Greek oxos "wine vinegar," which is related to oxys "sharp" (from PIE root *ak- "be sharp, rise (out) to a point, pierce"). Related: Vinegary; vinegarish.
