disparagement vs plaguy

disparagement is a noun but plaguy is not a noun.

Word	Noun	Adjective	Verb	Adverb
disparagement	Yes	No	No	No
plaguy	No	Yes	No	Yes

disparagement (noun)	plaguy (noun)
the act of speaking contemptuously of
a communication that belittles somebody or something

disparagement (adjective)	plaguy (adjective)
	causing irritation or annoyance

disparagement (adverb)	plaguy (adverb)
	in a pernicious or annoying manner