dunk (v.)

1919, "to dip (something) into a beverage or other liquid," American English, from Pennsylvania German dunke "to dip," from Middle High German dunken, from Old High German dunkon, thunkon "to soak," from PIE root *teng- "to soak" (see tincture). The basketball sense "jump up and push (the ball) down through the basket" is recorded by 1935 as a verb (implied in dunking), 1967 as a noun (earlier dunk shot, 1950). Related: Dunked.

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Definitions of dunk from WordNet
dunk (v.)
immerse briefly into a liquid so as to wet, coat, or saturate;
Synonyms: dip / souse / plunge / douse
dunk (v.)
make a dunk shot, in basketball;
He dunked the ball
dunk (v.)
dip into a liquid while eating;
She dunked the piece of bread in the sauce
Synonyms: dip
dunk (n.)
a basketball shot in which the basketball is propelled downward into the basket;
Synonyms: dunk shot / stuff shot