disparagement vs plagiarizer

disparagement and plagiarizer both are nouns.

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

disparagement (noun)	plagiarizer (noun)
the act of speaking contemptuously of	someone who uses another person's words or ideas as if they were his own
a communication that belittles somebody or something