derogation vs encroacher

derogation and encroacher both are nouns.

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

derogation (noun)	encroacher (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	someone who enters by force in order to conquer
a communication that belittles somebody or something