derogation vs harasser

derogation and harasser both are nouns.

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

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