headman (n.)youdaoicibaDictYouDict[headman 词源字典]
also head-man, "chief man, leader," Old English heafodman; see head (adj.) + man (n.). Cognate with German Hauptmann "captain."[headman etymology, headman origin, 英语词源]
madman (n.)youdaoicibaDictYouDict
early 14c., mad man, from mad (adj.) + man (n.). One-word form attested from c. 1400, prevalent from 16c.