Where does “pʰáynas” come from?

pʰáynas (Proto-Indo-Aryan) comes from Proto-Indo-Iranian pʰáynas, from Proto-Indo-European (s)poH(y)-, from Proto-Indo-European speh₁- — to succeed, to prosper.

Ancestry of “pʰáynas”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iranianpʰáynasfoam, froth
2Proto-Indo-European(s)poH(y)-foam
3Proto-Indo-Europeanspeh₁-to succeed, to prosper
Every word from Proto-Indo-European speh₁-Every word from Proto-Indo-European (s)poH(y)-Every word from Proto-Indo-Iranian pʰáynas