Synonyms for Maunder (same or very similar meaning)
WordNet sense 1 (talk indistinctly; usually in a low voice):
mumble, mutter, mussitateWordNet sense 2 (speak (about unimportant matters) rapidly and incessantly):
blab, blabber, chatter, clack, gabble, gibber, palaver, piffle, prate, prattle, tattle, tittle-tattle, twaddleFrom the ODE community, based on WordNetadd/edit