ester
‘compound produced by combination of an acid and an alcohol with elimination of water’
Lexical development traced from the Tamil root:
G. essigäther 'the German name for ethyl acetate' < essig ‘vinegar’ + äther ‘ether’ < O.H.G. ezzih < Lat. acetum < acere ‘be sharp; be sour’ < acer ‘sharp’ < ehs < ak- < Tamil akku