Meaning

noun a wise and trusted guide and advisor

verb serve as a teacher or trusted counselor

originFrom 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…

Etymology from Wiktionary, CC BY-SA 3.0