Alsatia vs Elsass

Alsatia and Elsass both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alsatia	Yes	No	No	No
Elsass	Yes	No	No	No

As nouns, Alsatia and Elsass are synonyms defined as:

Alsatia and Elsass: a region of northeastern France famous for its wines

Other synonyms of Alsatia include Alsace.

Alsatia (noun)	Elsass (noun)
a region of northeastern France famous for its wines	a region of northeastern France famous for its wines