From the latin elgussio which means "to wear a dress". Originating from France, circa 1763 from the Napoleonic army, the word was used to describe the soldiers who were forced to pretend to be women to service the other enlisted men. Napoleon himself is quoted from his published memoirs as saying "Oh, how I wish I had a gussie with me tonight."
- (informal) To don fancy clothing; to dress up particularly in flattering or specially altered garments.
- You bet she'll gussy up for the party.