Where does “ćyaHmás” come from?

ćyaHmás (Proto-Indo-Aryan) comes from Proto-Indo-Iranian ćyaHmás, from Proto-Indo-European ḱyeh₁-mó-s, from Proto-Indo-European (s)ḱeh₃- — darkness, shadow.

Ancestry of “ćyaHmás”, step by step

StepLanguageWordMeaning
1Proto-Indo-IranianćyaHmásblack
2Proto-Indo-Europeanḱyeh₁-mó-sblack, dark
3Proto-Indo-European(s)ḱeh₃-darkness, shadow
Every word from Proto-Indo-European (s)ḱeh₃-Every word from Proto-Indo-European ḱyeh₁-mó-sEvery word from Proto-Indo-Iranian ćyaHmás