Where does “źʰyás” come from?

źʰyás (Proto-Indo-Aryan) comes from Proto-Indo-Iranian ȷ́ʰyás, from Proto-Indo-European *dʰǵʰyés — yesterday.

Ancestry of “źʰyás”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iranianȷ́ʰyásyesterday
2Proto-Indo-European*dʰǵʰyésyesterday
Every word from Proto-Indo-European *dʰǵʰyés →Every word from Proto-Indo-Iranian ȷ́ʰyás →