Hrā́ȷ́niH (Proto-Indo-Aryan) comes from Proto-Indo-Iranian Hrā́ȷ́niH, from Proto-Indo-European h₃rḗǵnih₂, from Proto-Indo-European h₃rḗǵs, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.