8 letters · 18 points in Scrabble
adjective of or relating to the axil
adjective of or relating to the armpit
originAlteration by association with -ary of the French axillaire (“of the axilla”), itself an alteration of the earlier forms aisselliere and aissellaire, both from the assumed Latin etymon *axillāris, from axilla (“armpit”), diminutive form of the assumed *axula.
Etymology from Wiktionary, CC BY-SA 3.0