Where does “ćorwa” come from?

ćorwa (Proto-Samic) comes from Proto-Finno-Ugric śarwe, from Proto-Indo-Iranian *ćr̥Hwás, from Proto-Indo-European ḱr̥h₂-wó-s, from Proto-Indo-European ḱerh₂- — head, top; horn.

Ancestry of “ćorwa”, step by step

StepLanguageWordMeaning
1Proto-Finno-Ugricśarwe
2Proto-Indo-Iranian*ćr̥Hwáshorn
3Proto-Indo-Europeanḱr̥h₂-wó-s
4Proto-Indo-Europeanḱerh₂-head, top; horn
Every word from Proto-Indo-European ḱerh₂-Every word from Proto-Indo-European ḱr̥h₂-wó-sEvery word from Proto-Indo-Iranian *ćr̥Hwás