Where does “púśćas” come from?

púśćas (Proto-Indo-Aryan) comes from Proto-Indo-Iranian púsćas, from Proto-Indo-European puḱsos.

Ancestry of “púśćas”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iranianpúsćastail
2Proto-Indo-Europeanpuḱsos—
Every word from Proto-Indo-European puḱsos →Every word from Proto-Indo-Iranian púsćas →