mentor

Etymology

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. 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”)).

noun

1. A wise and trusted counselor or teacher.

verb

1. (transitive) To act as someone's mentor.