The story
- Arabic · derived fromمَا وَراءَ النَّهْر
- Latin · derived fromTransoxiana
- English todayTransoxiana
From Latin Transoxiana, from trans (“beyond”) + Oxus (“Amu Darya”), literally “lands beyond Oxus”, ultimately after Arabic مَا وَراءَ النَّهْر (mā warāʔa n-nahr, literally “what is beyond the river”).
Etymology from Wiktionary, CC BY-SA 4.0.