Aether vs Greek deity

Aether and Greek deity both are nouns.

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

As nouns, Greek deity is a hypernym of Aether; that is, Greek deity is a word with a broader meaning than Aether:

Aether: personification of the sky or upper air breathed by the Olympians; son of Erebus and night or of Chaos and darkness
Greek deity: a deity worshipped by the ancient Greeks

Aether (noun)	Greek deity (noun)
personification of the sky or upper air breathed by the Olympians; son of Erebus and night or of Chaos and darkness	a deity worshipped by the ancient Greeks