self-denial vs forswearing

self-denial and forswearing both are nouns.

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

As nouns, forswearing is a hypernym of self-denial; that is, forswearing is a word with a broader meaning than self-denial:

self-denial: renunciation of your own interests in favor of the interests of others
forswearing: the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.)

Other hypernyms of self-denial include forgoing, renunciation, self-sacrifice, selflessness.

self-denial (noun)	forswearing (noun)
the act of denying yourself; controlling your impulses	the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.)
renunciation of your own interests in favor of the interests of others
the trait of practicing self discipline