Meaning

noun a humorous anecdote or remark intended to provoke laughter

originFrom Middle English japen (“to deceive, play tricks on; act foolishly, joke; have sex with”), of uncertain origin, but perhaps combining Old French japer (“to bark, howl, scream; chatter, gossip”) with gaber (“to mock, deride”). See also gab, Old Occitan japar, jaupar (“to bark, yelp, yap”), related to Old Saxon galpōn (“to cry loudly, make a noise, brag”) (Low German galpen (“to bark, howl,…

Etymology from Wiktionary, CC BY-SA 3.0