Roman deity vs deity

Roman deity and deity both are nouns.

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

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

Roman deity: a deity worshipped by the ancient Romans
deity: any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force

Other hypernyms of Roman deity include divinity, god, immortal.

Roman deity (noun)	deity (noun)
a deity worshipped by the ancient Romans	any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force