Roman deity vs Parcae

Roman deity and Parcae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roman deity	Yes	No	No	No
Parcae	Yes	No	No	No

As nouns, Parcae is a hyponym of Roman deity; that is, Parcae is a word with a more specific, narrower meaning than Roman deity:

Roman deity: a deity worshipped by the ancient Romans
Parcae: any of the three Roman goddesses of fate or destiny; identified with the Greek Moirai and similar to the Norse Norns

Other hyponyms of Roman deity include faun.

Roman deity (noun)	Parcae (noun)
a deity worshipped by the ancient Romans	any of the three Roman goddesses of fate or destiny; identified with the Greek Moirai and similar to the Norse Norns