prepotency vs ascendance

prepotency and ascendance both are nouns.

Word	Noun	Adjective	Verb	Adverb
prepotency	Yes	No	No	No
ascendance	Yes	No	No	No

As nouns, ascendance is a hypernym of prepotency; that is, ascendance is a word with a broader meaning than prepotency:

prepotency: the state of being predominant over others
ascendance: the state that exists when one person or group has power over another

Other hypernyms of prepotency include ascendancy, ascendence, ascendency, control, dominance.

prepotency (noun)	ascendance (noun)
the state of being predominant over others	the state that exists when one person or group has power over another