galliard

Middle English gaylard, galyarde, gaillard “brave, strong, lively, gay,” borrowed from Anglo-French gaillard “vigorous, lively” (continental Old French also, “courageous”), probably from a Gallo-Romance base *galy- (going back to Celtic *gal-, in Old Irish gal “ardor in battle, valor,” Welsh gallu “to be able to, can” Breton gallout, going back to Indo-European *gelH- “gain power (over),” also in Lithuanian gal{edotacute}ti “to be able to”) + Old French -ard -ard

noun derivative of ¹galliard (probably after Italian gagliarda or Middle French gaillarde)