in reference to Napoleon Bonaparte (1769-1821), Corsican-born French military leader and dictator; the surname is the French form of Italian Buonaparte, from buona "good" (from Latin bonus "good;" see bonus) + parte "part, share, portion" (from Latin partem "a part, piece, a share, a division," from PIE root *pere- (2) "to grant, allot"). Related: Bonapartist; Bonapartism.