Where does “HráHtriH” come from?

HráHtriH (Proto-Indo-Aryan) comes from Proto-Indo-Iranian HráHtriH, from Proto-Indo-European Hréh₁trih₂.

Ancestry of “HráHtriH”, step by step

StepLanguageWordMeaning
1Proto-Indo-IranianHráHtriHstillness of night
2Proto-Indo-EuropeanHréh₁trih₂—
Every word from Proto-Indo-European Hréh₁trih₂ →Every word from Proto-Indo-Iranian HráHtriH →