Webster's Revised Unabridged Dictionary · 1913

Tee

Tee , noun

[Compare Icelandic tjā to show, mark.]

(a)
The mark aimed at in curling and in quoits.
(b)
The nodule of earth, or a short peg stuck into the ground, from which the ball is struck at the beginning of play for each hole in golf.

Tee , noun

1.
A short piece of pipe having a lateral outlet, used to connect a line of pipe with a pipe at a right angle with the line; -- so called because it resembles the letter T in shape.
2.
The letter T, t; also, something shaped like, or resembling in form, the letter T.

Tee , transitive verb

(Golf) To place (the ball) on a tee; also called to tee up.