6 letters · 7 points in Scrabble
noun a piece of chain mail covering a place unprotected by armor plate
noun a metal plate used to strengthen a joist
noun a piece of material used to strengthen or enlarge a garment
originFrom Middle English gusset, gysset, from Old French gosset, gousset (“the hollow of the armpit”), diminutive of gose, gosse (“bean pod, hull, husk”).
Etymology from Wiktionary, CC BY-SA 3.0