Ellas vs Grecian

Ellas and Grecian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ellas	Yes	No	No	No
Grecian	Yes	Yes	No	No

Ellas (noun)	Grecian (noun)
a republic in southeastern Europe on the southern part of the Balkan peninsula; known for grapes and olives and olive oil	a native or resident of Greece

Ellas (adjective)	Grecian (adjective)
	of or relating to or characteristic of Greece or the Greeks or the Greek language