persuade vs blarney

persuade is not a noun while blarney is a noun.

Word	Noun	Adjective	Verb	Adverb
persuade	No	No	Yes	No
blarney	Yes	No	Yes	No

As verbs, blarney is a hyponym of persuade; that is, blarney is a word with a more specific, narrower meaning than persuade:

persuade: cause somebody to adopt a certain position, belief, or course of action; twist somebody's arm
blarney: influence or urge by gentle urging, caressing, or flattering

persuade (noun)	blarney (noun)
	flattery designed to gain favor

persuade (verb)	blarney (verb)
cause somebody to adopt a certain position, belief, or course of action; twist somebody's arm	influence or urge by gentle urging, caressing, or flattering
win approval or support for