Cock*ade" (k&obreve;k*ād"), n. [F. cocarble, fr. coquard vain, OF. coquart, fr. coq cock, prob. of imitative origin. The ornament is so named from its resemblance to the crest of a cock. Cf. Coquette.] A badge, usually in the form of a rosette, or knot, and generally worn upon the hat; -- used as an indication of military or naval service, or party allegiance, and in England as a part of the livery to indicate that the wearer is the servant of a military or naval officer.

Seduced by military liveries and cockades.
Burke.

• A rosette worn in a hat as an office or party badge