Jack the Ripper vs derogation

Jack the Ripper and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jack the Ripper	Yes	No	No	No
derogation	Yes	No	No	No

Jack the Ripper (noun)	derogation (noun)
an unidentified English murderer in the 19th century	(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