I. ˈdəŋk verb
Etymology: Pennsylvania German dunke, from Middle High German dunken, from Old High German dunkōn — more at tinge
Date: 1919
transitive verb
1. : to dip (as a piece of bread) into a beverage while eating
2. : to dip or submerge temporarily in liquid
3. : to throw (a basketball) into the basket from above the rim
intransitive verb
1. : to submerge oneself in water
2. : to make a dunk shot in basketball
II. noun
Date: circa 1944
: the act or action of dunking ; especially : dunk shot