The story
- Proto-Indo-European*me
- Proto-Indo-European*dʰeh₁-?
- Proto-Indo-European*médʰi
- Proto-Indo-European*médʰyos
- Proto-Hellenic*métsos
- Ancient Greekμέσος (mésos)
- Proto-Indo-European*peth₂-der.?
- Ancient Greekποταμός (potamós)
- Ancient Greekμεσοποτάμῐος (mesopotámĭos)
- Ancient GreekΜεσοποταμίᾱ (Mesopotamíā)
- LatinMesopotamia
- EnglishMesopotamia
- English todayMesopotamian
From Mesopotamia + -an. Compare with French mésopotamien.
Etymology from Wiktionary, CC BY-SA 4.0.