Word Origin & History
"wise advisor," 1750, from Gk. Mentor, character in the "Odyssey," friend of Odysseus, adviser of Telemachus (often actually Athene in disguise), perhaps ult. meaning "adviser," since the name appears to be an agent noun of mentos "intent, purpose, spirit, passion" from PIE *mon-eyo- (cf. Skt. man-tar-
"one who thinks," L. mon-i-tor "one who admonishes"), causative form of base *men- "to think" (see mental
). Related: Mentored; mentoring.