DictionaryRoot: aigre
Old French
aigre
sour
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noun
vinegar
VIN-ih-ger/ˈvɪnɪɡər/
A sour liquid made by fermenting alcohol, used to flavor or preserve food.
Etymology
The pieces literally mean “sour wine”: vinegar was originally named for wine that had turned sour. That original description directly captures the sourness central to its culinary uses.