false witness vs derogation

false witness and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
false witness	Yes	No	No	No
derogation	Yes	No	No	No

false witness (noun)	derogation (noun)
a person who deliberately gives false testimony	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
	a communication that belittles somebody or something