Where does “پردختن” come from?

پردختن (Pahlavi) comes from Proto-Iranian pari-, from Proto-Indo-Iranian pári, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “پردختن”, step by step

StepLanguageWordMeaning
1Proto-Iranianpari-around
2Proto-Indo-Iranianpári—
3Proto-Indo-Europeanper-before, in front; first; to go through
4Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-Iranian pári →