acerbity ‘sourness, with roughness or astringency of taste’
Lexical development traced from the Tamil root:
E. acerbitie < F. acerbité < Lat. acerbitatem ‘harshness, sharpness, bitterness, sourness’ < acerbus ‘bitter to taste, sharp, sour, tart’ < uhs < ak < Tamil akku< uhs < ak < Tamil< Proto-G agjo < uhj < ak < Tamil akku