spokesman (n.)youdaoicibaDictYouDict[spokesman 词源字典]
1510s, "an interpreter," 1530s in the sense of "person who speaks for another or others." Irregular formation from spoke, past tense of speak (actually a back-formation from spoken) + man (n.). Perhaps on analogy of craftsman. Spokeswoman is from 1650s; spokesperson is from 1972; spokesmodel is attested from 1990.[spokesman etymology, spokesman origin, 英语词源]