gibber vs palaver

gibber and palaver both are nouns.

Word	Noun	Adjective	Verb	Adverb
gibber	Yes	No	Yes	No
palaver	Yes	No	Yes	No

As verbs, gibber and palaver are synonyms defined as:

gibber and palaver: speak (about unimportant matters) rapidly and incessantly

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

gibber (noun)	palaver (noun)
unintelligible talking	loud and confused and empty talk
	flattery intended to persuade

gibber (verb)	palaver (verb)
speak (about unimportant matters) rapidly and incessantly	have a lengthy discussion, usually between people of different backgrounds
chatter inarticulately; of monkeys	influence or urge by gentle urging, caressing, or flattering
	speak (about unimportant matters) rapidly and incessantly