derogation vs mammy

derogation and mammy both are nouns.

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

derogation (noun)	mammy (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	informal terms for a mother
a communication that belittles somebody or something	an offensive term for a Black nursemaid in the southern U.S.