tutor

Etymology 1

From Middle English tutour, from Old French tuteur (French tuteur), from Latin tūtor (“a watcher, protector, guardian”), from tueor (“protect”); see tuition.

noun

1. One who teaches another (usually called a student, learner, or tutee) in a one-on-one or small-group interaction.
   He passed the difficult class with help from his tutor.
2. (UK) A university officer responsible for students in a particular hall.
3. (UK) A homeroom
4. (obsolete or Quebec law) One who has the charge of a child or pupil and his estate; a guardian.

verb

1. (transitive) To instruct or teach, especially an individual or small group.
   To help pay her tuition, the college student began to tutor high school students in calculus and physics.
2. (transitive, archaic) To treat with authority or sternness.

Etymology 2

Ellipsis of Demonic tutor, name of an early Magic: The Gathering card with this effect.

noun

1. (collectible card games) A card that allows one to search one's deck for one or more other cards.
   here are some tutor cards i thought would be interesting. 1998-04-05, kc...@pcmagic.com, “tutor ideas”, in rec.games.trading-cards.magic.misc (Usenet), retrieved 2019-05-09, message-ID <<35271e02.1847089@news.pcmagic.net>>

verb

1. (collectible card games) To fetch a card from one's deck.
   Any instant that you move to the board can *only* be tutored for with Cunning Wish. 2002, David Seiler, “Type I -- What do you think about Wishes and how do you plan to break them?”, in rec.games.trading-cards.magic.strategy (Usenet)