derogation vs hired gun

derogation and hired gun both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
hired gun	Yes	No	No	No

derogation (noun)	hired gun (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a professional killer who uses a gun
a communication that belittles somebody or something