Alexander Dyce, A General Glossary to Shakespeare's Works

coxcomb — “Here's my,” KING LEAR, i. 4. 94 ; “take my coxcomb,” KING LEAR, i. 4. 96 ,100 ; “wear my coxcomb,” KING LEAR, i. 4. 103 ; “two coxcombs,” KING LEAR, i. 4. 104 ; “my coxcombs,” KING LEAR, i. 4. 107. “It was a fashion certainly as old as the middle of the fourteenth century, to decorate the head of the domestic fool with a comb, like that of a cock; but frequently the apex of the hood took the form of the neck and the head of a cock, etc. ” (FAIRHOLT) .