Where does “Ասորեստան” come from?

Ասորեստան (Armenian) comes from Old Armenian Ասորեստան, from Middle Persian 𐭠𐭮𐭥𐭥𐭮𐭲𐭭, from Middle Persian 𐭠𐭮𐭥𐭥 — Assyrian.

Ancestry of “Ասորեստան”, step by step

StepLanguageWordMeaning
1Old ArmenianԱսորեստան
2Middle Persian𐭠𐭮𐭥𐭥𐭮𐭲𐭭Asuristan (official name of the satrapy of Babylonia under Sassanians)
3Middle Persian𐭠𐭮𐭥𐭥Assyrian
Every word from Middle Persian 𐭠𐭮𐭥𐭥Every word from Middle Persian 𐭠𐭮𐭥𐭥𐭮𐭲𐭭Every word from Old Armenian Ասորեստան