Where does “śr̥Hngám” come from?

śr̥Hngám (Proto-Indo-Aryan) comes from Proto-Indo-Iranian ćr̥Hngám, from Proto-Indo-Iranian ćr̥Hnám, from Proto-Indo-European ḱr̥h₂-nó-m, from Proto-Indo-European ḱerh₂- — head, top; horn.

Ancestry of “śr̥Hngám”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iranianćr̥Hngám—
2Proto-Indo-Iranianćr̥Hnám—
3Proto-Indo-Europeanḱr̥h₂-nó-m—
4Proto-Indo-Europeanḱerh₂-head, top; horn
Every word from Proto-Indo-European ḱerh₂- →Every word from Proto-Indo-European ḱr̥h₂-nó-m →Every word from Proto-Indo-Iranian ćr̥Hnám →