puck (n.)
"ice hockey disk," 1891, possibly from puck (v.) "to hit, strike" (1861), which perhaps is related to poke (v.) via notion of "push." Another suggestion traces the noun to Irish poc "bag."
Puck
"mischievous fairy" (in "A Midsummer Night's Dream"), probably from pouke "devil, evil spirit" (c.1300), from Old English puca, pucel "goblin," cognate with Old Norse puki "devil, fiend," of unknown origin (compare pug). Celtic origins also have been proposed. Capitalized since 16c. His disguised name was Robin Goodfellow.