derogation vs poor fish

derogation and poor fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
poor fish	Yes	No	No	No

derogation (noun)	poor fish (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person who is not very bright
a communication that belittles somebody or something