blather vs tattle

blather and tattle both are nouns.

Word	Noun	Adjective	Verb	Adverb
blather	Yes	No	Yes	No
tattle	Yes	No	Yes	No

As verbs, tattle is a hypernym of blather; that is, tattle is a word with a broader meaning than blather:

Other hypernyms of blather include blab, blabber, chatter, clack, gabble, gibber, maunder, palaver, piffle, prate, prattle, tittle-tattle, twaddle.

blather (noun)	tattle (noun)
foolish gibberish	disclosing information or giving evidence about another

blather (verb)	tattle (verb)
to talk foolishly	speak (about unimportant matters) rapidly and incessantly
	divulge confidential information or secrets