spokesman (n.) Look up spokesman at Dictionary.com
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.