Hellenic vs Greece

Hellenic and Greece both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hellenic	Yes	Yes	No	No
Greece	Yes	No	No	No

Hellenic (noun)	Greece (noun)
the Hellenic branch of the Indo-European family of languages	a republic in southeastern Europe on the southern part of the Balkan peninsula; known for grapes and olives and olive oil
	ancient Greece; a country of city-states (especially Athens and Sparta) that reached its peak in the fifth century BCE

Hellenic (adjective)	Greece (adjective)
relating to or characteristic of the classical Greek civilization
of or relating to or characteristic of Greece or the Greeks or the Greek language