c. 1300, jangeln, "to talk excessively, chatter, talk idly" (intransitive), from Old French jangler "to chatter, gossip, bawl, argue noisily" (12c.), perhaps from Frankish *jangelon "to jeer" or some other Germanic source (compare Middle Dutch jangelen "to whine," Low German janken "to yell, howl"), probably imitative (compare Latin equivalent gannire). Meaning "make harsh noise" is first recorded late 15c. Transitive sense "cause to emit discordant or harsh sounds" is from c. 1600. Related: Jangled; jangling. Chaucer has jangler "idle talker, a gossip."