negation vs disaffirmation

negation and disaffirmation both are nouns.

Word	Noun	Adjective	Verb	Adverb
negation	Yes	No	No	No
disaffirmation	Yes	No	No	No

As nouns, disaffirmation is a hypernym of negation; that is, disaffirmation is a word with a broader meaning than negation:

Other hypernyms of negation include denial.

negation (noun)	disaffirmation (noun)
the speech act of negating	the act of asserting that something alleged is not true
a negative statement; a statement that is a refusal or denial of some other statement
(logic) a proposition that is true if and only if another proposition is false