prattle vs verbalize

prattle is a noun but verbalize is not a noun.

Word	Noun	Adjective	Verb	Adverb
prattle	Yes	No	Yes	No
verbalize	No	No	Yes	No

As verbs, verbalize is a hypernym of prattle; that is, verbalize is a word with a broader meaning than prattle:

Other hypernyms of prattle include mouth, speak, talk, utter, verbalise.

prattle (noun)	verbalize (noun)
idle or foolish and irrelevant talk

prattle (verb)	verbalize (verb)
speak (about unimportant matters) rapidly and incessantly	convert into a verb
	express in speech
	be verbose
	articulate; either verbally or with a cry, shout, or noise