jabber

Jabber, v. i. [imp. & p. p. Jabbered; p. pr. & vb. n. Jabbering.]

Etymology: [Cf. Gibber, Gabble.]

To talk rapidly, indistinctly, or unintelligibly; to utter gibberish or nonsense; to chatter. Swift.

3 other Webster entries under this spelling

Jabber, v. t.

To utter rapidly or indistinctly; to gabble; as, to jabber French. Addison.

Jabber, n.

Rapid or incoherent talk, with indistinct utterance; gibberish. Swift.

Jabber, n.

One who jabbers.

Shades of meaning

Fernald has no entry of its own for jabber; he lists it under babble.

Where he writes about it:

To jabber is to utter a rapid succession of unintelligible sounds, generally more noisy than chattering. — from babble

none given