cockscomb (n.)youdaoicibaDictYouDict[cockscomb 词源字典]
c. 1400, "comb or crest of a cock," from possessive of cock (n.1) + comb (n.). Meaning "cap worn by a professional fool" is from 1560s; hence "conceited fool" (1560s), a sense passing into the derivative coxcomb. As a plant name, from 1570s.[cockscomb etymology, cockscomb origin, 英语词源]