derogation vs mass murderer

derogation and mass murderer both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
mass murderer	Yes	No	No	No

derogation (noun)	mass murderer (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person who is responsible for the deaths of many victims in a single incident
a communication that belittles somebody or something