ascendant vs ascending

ascendant and ascending both are nouns.

Word	Noun	Adjective	Verb	Adverb
ascendant	Yes	Yes	No	No
ascending	Yes	Yes	No	No

ascendant (noun)	ascending (noun)
someone from whom you are descended (but usually more remote than a grandparent)	the act of changing location in an upward direction
position or state of being dominant or in control

ascendant (adjective)	ascending (adjective)
tending or directed upward	moving or going or growing upward
most powerful or important or influential