Where does “כּוּרְסְיָא” come from?

כּוּרְסְיָא (Aramaic) comes from Akkadian kussûm, from Sumerian 𒄑𒄖𒍝.

Ancestry of “כּוּרְסְיָא”, step by step

Step	Language	Word	Meaning
1	Akkadian	kussûm	—
2	Sumerian	𒄑𒄖𒍝	—