Celtic deity vs Fomor

Celtic deity and Fomor both are nouns.

Word	Noun	Adjective	Verb	Adverb
Celtic deity	Yes	No	No	No
Fomor	Yes	No	No	No

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

Celtic deity: a deity worshipped by the Celts
Fomor: one of a group of Celtic sea demons sometimes associated with the hostile power of nature

Other hyponyms of Celtic deity include Fomorian, Ler, Lir, Llew Llaw Gyffes, Tuatha De, Tuatha De Danann.

Celtic deity (noun)	Fomor (noun)
a deity worshipped by the Celts	one of a group of Celtic sea demons sometimes associated with the hostile power of nature