Ashur vs Ashir

Ashur and Ashir both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ashur	Yes	No	No	No
Ashir	Yes	No	No	No

As nouns, Ashur and Ashir are synonyms defined as:

Ashur and Ashir: chief god of the Assyrians; god of military prowess and empire; identified with Babylonian Anshar

Ashur (noun)	Ashir (noun)
an ancient Assyrian city on the Tigris and traditional capital of Assyria; just to the south of the modern city of Mosul in Iraq	chief god of the Assyrians; god of military prowess and empire; identified with Babylonian Anshar
chief god of the Assyrians; god of military prowess and empire; identified with Babylonian Anshar