self-denial vs abnegation

self-denial and abnegation both are nouns.

Word	Noun	Adjective	Verb	Adverb
self-denial	Yes	No	No	No
abnegation	Yes	No	No	No

As nouns, self-denial and abnegation are synonyms defined as:

self-denial and abnegation: renunciation of your own interests in favor of the interests of others

Other synonyms of self-denial include denial, self-abnegation, self-renunciation.

self-denial (noun)	abnegation (noun)
the act of denying yourself; controlling your impulses	renunciation of your own interests in favor of the interests of others
renunciation of your own interests in favor of the interests of others	the denial and rejection of a doctrine or belief
the trait of practicing self discipline