derogation vs defiler

derogation and defiler both are nouns.

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

derogation (noun)	defiler (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person or organization that causes pollution of the environment
a communication that belittles somebody or something