Where does “زاستر” come from?

زاستر (Persian) comes from Proto-Iranian *jyáh, from Proto-Indo-Iranian ȷ́ʰyás, from Proto-Indo-European *dʰǵʰyés — yesterday.

زاستر (Persian): away; beyond

Definitions

  1. away; beyond

Ancestry of “زاستر”, step by step

StepLanguageWordMeaning
1Proto-Iranian*jyáh—
2Proto-Indo-Iranianȷ́ʰyásyesterday
3Proto-Indo-European*dʰǵʰyésyesterday
Every word from Proto-Indo-European *dʰǵʰyés →Every word from Proto-Indo-Iranian ȷ́ʰyás →Every word from Proto-Iranian *jyáh →