Mentor
mid 18th century: via French and Latin from Greek Mentōr, the name of the adviser of the young Telemachus in Homer's Odyssey .
wiktionary
From French mentor, from Ancient Greek Μέντωρ(Méntōr, “Mentor”), a mythological character in the Odyssey, whose name, a historical name from Ancient Greece, shares the same root as English mind. [1] Cognate to Sanskrit मन्तृ(mantṛ, “advisor, counselor”) and Latin monitor(“one who admonishes”), and perhaps ultimately from Proto-Indo-European *monéyeti (compare Latin moneō(“to warn”), causative form of *men-(“to think”)). [2]
etymonline
mentor (n.)
"wise adviser, intimate friend who also is a sage counselor," especially of one who is young or inexperienced, 1750, from Greek Mentor, friend of Odysseus and adviser of Telemachus (but often actually Athene in disguise) in the "Odyssey." The name perhaps ultimately means "adviser," because in form it is an agent noun of mentos "intent, purpose, spirit, passion" from PIE *mon-eyo- (source also of Sanskrit man-tar- "one who thinks," Latin mon-i-tor "one who admonishes"), causative form of root *men- (1) "to think." Compare monitor (n.). Often capitalized, even in the general sense, into mid-19c. The general use of the word probably is via later popular romances, in which Mentor played a larger part than he does in Homer. Related: Mentorship.
mentor (v.)
"serve as a mentor to," 1888, from mentor (n.). Related: Mentored; mentoring.
