derogation vs aggressor

derogation and aggressor both are nouns.

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

derogation (noun)	aggressor (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	someone who attacks
a communication that belittles somebody or something	a confident assertive person who acts as instigator