adjective/so/
silly, foolish, stupid
Related: il n'y a pas de sot métier
Inherited from Middle French sot, from Old French sot, from Medieval Latin sottus (“foolish”), of uncertain ultimate origin. Possibly an expressive interjection, similar to modern zut! (“damn it!”). This Latin word was borrowed into Germanic languages such as Dutch zot, Old English sott (modern English sot).