Greek deity vs Moirai

Greek deity and Moirai both are nouns.

Word	Noun	Adjective	Verb	Adverb
Greek deity	Yes	No	No	No
Moirai	Yes	No	No	No

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

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

Other hyponyms of Greek deity include Grace, forest god, satyr, silenus, Aether, Moirae, Muse, Pontos, Pontus, Rhadamanthus.

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