obliterate vs derogation

obliterate is not a noun while derogation is a noun.

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

obliterate (noun)	derogation (noun)
	(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

obliterate (adjective)	derogation (adjective)
reduced to nothingness

obliterate (verb)	derogation (verb)
remove completely from recognition or memory
make undecipherable or imperceptible by obscuring or concealing
mark for deletion, rub off, or erase
do away with completely, without leaving a trace