Other forms: vinegars
Vinegar is the very sour liquid you mix with oil for salad dressing. Oil and vinegar, malt vinegar, a splash of vinegar.
It is wine or beer taken one step further: bacteria turn the alcohol into acetic acid, which is what makes it sour and what preserves pickles. The name says so — the French vin aigre means sour wine. It cleans limescale for the same reason it pickles.
1nounvinegarA sour liquid made by fermenting alcohol further.
“She sprinkled salt and vinegar on her chips.”
Patternwhite / malt / balsamic vinegar · a splash / dash of vinegar · oil and vinegar · in vinegar · vinegary
vinegar is a liquid.
VINEgar → from the VINE: grapes, then wine, then this
Grapes on the vine become wine, and wine left open too long turns sharp and sour: vinegar.
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Old French vyn egre means sour wine, from Latin vinum, wine, plus acer, sharp or sour.
Proto-Indo-European
*h₂eḱ-
Middle English
vynegre
English, today
vinegar
From Middle English vynegre. From Middle English vynegre, from Old French vinaigre from Old French vyn egre, based on Latin vīnum (“wine”) + Latin ācer (“sour”). Displaced Old English æċed (survived in Middle English eced).
Etymology from Wiktionary, CC BY-SA