tattle

From Middle Dutch tatelen, tateren (“to babble, chatter”) (modern Dutch tatelen, tateren (“to talk, chatter”)), originally imitative. The word is cognate with Saterland Frisian tätelje (“to talk nonsense, babble”), Middle Low German tāteren, tadderen (“to babble, chatter”) (whence modern German Low German tatern (“to chatter”)), Low German tateln, täteln (“to cackle, gabble”). Compare also Middle English dadel, dadull (“tattling, gossip”), and its alteration twaddle.