forgoing vs abnegation

forgoing and abnegation both are nouns.

Word	Noun	Adjective	Verb	Adverb
forgoing	Yes	No	No	No
abnegation	Yes	No	No	No

As nouns, abnegation is a hyponym of forgoing; that is, abnegation is a word with a more specific, narrower meaning than forgoing:

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

Other hyponyms of forgoing include forsaking, giving up, denial, self-abnegation, self-denial, self-renunciation.

forgoing (noun)	abnegation (noun)
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 denial and rejection of a doctrine or belief