encroacher vs derogation

encroacher and derogation both are nouns.

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

encroacher (noun)	derogation (noun)
someone who enters by force in order to conquer	(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