cocktail -
first attested 1806; H.L. Mencken lists seven versions of its origin, perhaps the most persuasive is Fr. coquetier "egg-cup." In New Orleans, c.1795, Antoine Amédée Peychaud, an apothecary (and inventor of Peychaud bitters) held Masonic social gatherings at his pharmacy, where he mixed brandy toddies with his own bitters and served them in an egg-cup. The drink took the name of the cup, in Eng. cocktay. Cocktail party first attested 1928.