Mesopotamian region (5)

I believe the answer is:

sumer

(Other definitions for sumer that I've seen before include "old civilisation" , "old region of Mesopotamia" , "site of ancient civilization" , "Ancient region" .)

I've seen this clue in the King Feature Syndicate.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.