1. Axill-of or pertaining to the armpit (uncommon as a prefix) Latin , armpit Axilla: azo(to)-nitrogenous compound French azote, nitrogen; from Greek άζωτικός (ázōtikós) ἀ-(a-, no, without) + ζωή (zōḗ, life)), mephitic air azothermia: raised temperature due to …