Where does “கோதாவரி” come from?

கோதாவரி (Tamil) comes from Sanskrit गोदावरी, from Sanskrit गो, from Proto-Indo-Iranian gāuš, from Proto-Iranian gā́wš, from Proto-Indo-Iranian gā́wš, from Proto-Indo-European gʷṓws — cattle.

Ancestry of “கோதாவரி”, step by step

StepLanguageWordMeaning
1SanskritगोदावरीName of a river in the Indian peninsula, the Godavari
2Sanskritगोa cow; an ox; cattle, kine, herd of cattle
3Proto-Indo-Iraniangāuš—
4Proto-Iraniangā́wšcow
5Proto-Indo-Iraniangā́wšcow
6Proto-Indo-Europeangʷṓwscattle
Every word from Proto-Indo-European gʷṓws →Every word from Proto-Indo-Iranian gā́wš →Every word from Proto-Iranian gā́wš →