Webster's Revised Unabridged Dictionary · 1913

Puck

Puck , noun

[Old English pouke; compare OSw. puke, Icelandic pūki an evil demon, Welsh pwca a hobgoblin. Compare Poker a bugbear, Pug.]

1.
(Mediaval Mythology) A celebrated fairy, “the merry wanderer of the night;” -- called also Robin Goodfellow, Friar Rush, Pug, etc. — Shakespeare
He meeteth Puck, whom most men call Hobgoblin, and on him doth fall. — Drayton
2.
(Zoology) The goatsucker. [Provincial English]

Puck , noun

A disk of vulcanized rubber used in the game of hockey, as the object to be driven through the goals.