pestiferous vs derogation

pestiferous is not a noun while derogation is a noun.

Word	Noun	Adjective	Verb	Adverb
pestiferous	No	Yes	No	No
derogation	Yes	No	No	No

pestiferous (noun)	derogation (noun)
	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
	a communication that belittles somebody or something

pestiferous (adjective)	derogation (adjective)
causing irritation or annoyance
likely to spread and cause an epidemic disease
tending to corrupt or pervert
contaminated with infecting organisms