Mentor
Origin
From French mentor, from Ancient Greek ÎœÎÎ½Ï„Ï‰Ï (MentÅr, "Mentor"), a mythological character in the Odyssey, whose name, a historical name from Ancient Greece, may share the same root as English mind.
"mentor, n.". OED Online. March 2013. Oxford University Press. 1 April 2013, http://www.oed.com/view/Entry/116575?rskey=EAtx24&result=1&isAdvanced=false.
Akin to Sanskrit मनà¥à¤¤à¥ƒ (mantá¹›, "one who thinks") and Latin monitor ("one who admonishes"), and perhaps ultimately from Proto-Indo-European *mon-eyo-, causative form of *men- ("to think").
"mentor (n.)". Online Etymology Dictionary. 2013. Douglas Harper. 2 September 2013, http://www.etymonline.com/index.php?term=mentor.