Where does “Rao” come from?

Rao (English) comes from Telugu రావు, from Sanskrit राजन्, from Proto-Indo-Aryan Hrā́ȷ́ā, from Proto-Indo-Iranian Hrā́ȷ́ā, from Proto-Indo-European h₃rḗǵs, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.

Ancestry of “Rao”, step by step

Rao traces back through two separate lines of ancestry.

via Telugu రావు

StepLanguageWordMeaning
1TeluguరావుAn honorific title like Mr., assumed by Vyāpari...
2Sanskritराजन्a king, sovereign, prince, chief; a man of the...
3Proto-Indo-AryanHrā́ȷ́āking
4Proto-Indo-IranianHrā́ȷ́ā
5Proto-Indo-Europeanh₃rḗǵsking, ruler
6Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just

via Marathi राव

StepLanguageWordMeaning
1Marathiरावa king

Words derived from “Rao

Every word from Proto-Indo-European h₃reǵ-Every word from Proto-Indo-European h₃rḗǵsEvery word from Proto-Indo-Iranian Hrā́ȷ́ā