Where does “ғайн” come from?

ғайн (Tajik) comes from Classical Persian غَیْن, from Arabic غَيْن.

Ancestry of “ғайн”, step by step

StepLanguageWordMeaning
1Classical Persianغَیْن—
2Arabicغَيْن—
Every word from Arabic غَيْن →Every word from Classical Persian غَیْن →