identity vs personhood

identity and personhood both are nouns.

Word	Noun	Adjective	Verb	Adverb
identity	Yes	No	No	No
personhood	Yes	No	No	No

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

identity: the distinct personality of an individual regarded as a persisting entity
personhood: being a person

Other hyponyms of identity include gender identity, identification.

identity (noun)	personhood (noun)
the distinct personality of an individual regarded as a persisting entity	being a person
exact sameness
the individual characteristics by which a thing or person is recognized or known
an operator that leaves unchanged the element on which it operates