Meaning

noun a sudden and decisive increase

noun an abrupt transition

noun (film) an abrupt transition from one scene to another

originFrom Middle English jumpen (“to walk quickly, run, jump”), probably of Middle Low German or North Germanic origin, ultimately from Proto-Germanic *gumpōną ~ *gumbōną (“to hop, skip, bounce”), an iterative verb. The OED suggests an imitative origin. Related to jumble. In the sense “to propel oneself” it displaced leap partially and spring largely. Cognates Cognate with German Low German jumpen…

Etymology from Wiktionary, CC BY-SA 3.0