confab vs claver

confab is a noun but claver is not a noun.

Word	Noun	Adjective	Verb	Adverb
confab	Yes	No	Yes	No
claver	No	No	Yes	No

As verbs, confab and claver are synonyms defined as:

confab and claver: talk socially without exchanging too much information

confab (noun)	claver (noun)
an informal conversation

confab (verb)	claver (verb)
talk socially without exchanging too much information	talk socially without exchanging too much information
have a conference in order to talk something over