Aeolia vs Aeolis

Aeolia and Aeolis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aeolia	Yes	No	No	No
Aeolis	Yes	No	No	No

As nouns, Aeolia and Aeolis are synonyms defined as:

Aeolia and Aeolis: an ancient coastal region of northwestern Asia Minor (including Lesbos) where the Aeolians founded several cities around 1100 BC

Aeolia (noun)	Aeolis (noun)
an ancient coastal region of northwestern Asia Minor (including Lesbos) where the Aeolians founded several cities around 1100 BC	an ancient coastal region of northwestern Asia Minor (including Lesbos) where the Aeolians founded several cities around 1100 BC