inheritress vs inheritor

inheritress and inheritor both are nouns.

Word	Noun	Adjective	Verb	Adverb
inheritress	Yes	No	No	No
inheritor	Yes	No	No	No

As nouns, inheritor is a hypernym of inheritress; that is, inheritor is a word with a broader meaning than inheritress:

inheritress: a female heir
inheritor: a person who is entitled by law or by the terms of a will to inherit the estate of another

Other hypernyms of inheritress include heir, heritor, adult female, woman.

inheritress (noun)	inheritor (noun)
a female heir	a person who is entitled by law or by the terms of a will to inherit the estate of another