beau Look up beau at Dictionary.com
"attendant suitor of a lady," 1720, from Fr. beau "the beautiful," noun use of an adjective, from O.Fr. bel "beautiful, handsome, fair, genuine, real," from L. bellus "handsome, fine," dim. of bonus "good" (see bene-). Meaning "man who attends excessively to dress, etiquette, etc.; a fop; a dandy" is from 1680s, short for Fr. beau garçon "pretty boy" (c.1665).