Pontus vs Greek deity

Pontus and Greek deity both are nouns.

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

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

Pontus: (Greek mythology) ancient personification of the sea; father of Nereus
Greek deity: a deity worshipped by the ancient Greeks

Pontus (noun)	Greek deity (noun)
an ancient region of northern Asia Minor on the Black Sea; it reached its height under Mithridates VI but was later incorporated into the Roman Empire	a deity worshipped by the ancient Greeks
(Greek mythology) ancient personification of the sea; father of Nereus