sou
'a French coin; a solid coin’
Lexical development traced from the Tamil root:
sous < O.F. soul ‘a coin worth one-twentieth of a livre’ < Lat. solidus name of an imperial Roman coin, in full nummus solidus ‘solid coin’ <soo < sol- < Tamil iṟai
sou
English words derived from Tamil iṟai connoting ‘staying place’