Where does “كاين” come from?

كاين (Algerian Arabic) comes from Khowar اي, from Middle Persian ʾy, from Proto-Iranian Háywah, from Proto-Indo-Iranian Háywas, from Proto-Indo-European óynos — one; single.

Ancestry of “كاين”, step by step

كاين traces back through 3 separate lines of ancestry.

via Khowar اي

StepLanguageWordMeaning
1Khowarاي—
2Middle Persianʾy—
3Proto-IranianHáywahone
4Proto-Indo-IranianHáywasjust, only; one
5Proto-Indo-Europeanóynosone; single

via Arabic كَائِن

StepLanguageWordMeaning
1Arabicكَائِن—

via Arabic كَـ

StepLanguageWordMeaning
1Arabicكَـ—
Every word from Proto-Indo-European óynos →Every word from Proto-Indo-Iranian Háywas →Every word from Proto-Iranian Háywah →