vin ‧ e ‧ gar /ˈvɪnɪɡə $ -ər/ BrE AmE noun [uncountable]
[ Date: 1200-1300 ; Language: Old French ; Origin: vinaigre , from vin 'wine' + aigre 'sour' ]
a sour-tasting liquid made from ↑ malt or wine that is used to improve the taste of food or to preserve it