Where does “yámHas” come from?

yámHas (Proto-Indo-Aryan) comes from Proto-Indo-Iranian yámHas, from Proto-Indo-European yémHos, from Proto-Indo-European h₂eym- — to copy, imitate.

Ancestry of “yámHas”, step by step

StepLanguageWordMeaning
1Proto-Indo-IranianyámHaspair, twin
2Proto-Indo-EuropeanyémHostwin
3Proto-Indo-Europeanh₂eym-to copy, imitate
Every word from Proto-Indo-European h₂eym- →Every word from Proto-Indo-European yémHos →Every word from Proto-Indo-Iranian yámHas →