Where does “иу” come from?

иу (Ossetian) comes from Proto-Iranian Háywah, from Proto-Indo-Iranian Háywas, from Proto-Indo-European óynos — one; single.

иу (Ossetian): one

Definitions

  1. one

Ancestry of “иу”, step by step

StepLanguageWordMeaning
1Proto-IranianHáywahone
2Proto-Indo-IranianHáywasjust, only; one
3Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European óynos →Every word from Proto-Indo-Iranian Háywas →Every word from Proto-Iranian Háywah →