vinegar
‘a sour liquid containing acetic acid’
Lexical development traced from the Tamil root:
E. vynagre, vyneygre, vineager < O.F. vinaigre ‘vinegar’ < vin ‘wine’ < Lat. vinum + O.F. aigre ‘sour, acid’ < Vulgar Lat. acrus < Lat. acer ‘sharp, piercing’ < eeg < ak- < Tamil akku