self-control vs ascesis

self-control and ascesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
self-control	Yes	No	No	No
ascesis	Yes	No	No	No

As nouns, ascesis is a hyponym of self-control; that is, ascesis is a word with a more specific, narrower meaning than self-control:

Other hyponyms of self-control include abstinence, asceticism, mortification.

self-control (noun)	ascesis (noun)
the act of denying yourself; controlling your impulses	rigorous self-denial and active self-restraint
the trait of resolutely controlling your own behavior