ascendant vs foremother

ascendant and foremother both are nouns.

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

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

ascendant: someone from whom you are descended (but usually more remote than a grandparent)
foremother: a female ancestor

Other hyponyms of ascendant include ancestress, forbear, forebear, father, forefather, sire, primogenitor, progenitor.

ascendant (noun)	foremother (noun)
someone from whom you are descended (but usually more remote than a grandparent)	a female ancestor
position or state of being dominant or in control

ascendant (adjective)	foremother (adjective)
tending or directed upward
most powerful or important or influential