derogation vs lady killer

derogation and lady killer both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
lady killer	Yes	No	No	No

derogation (noun)	lady killer (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a man who takes advantage of women
a communication that belittles somebody or something