Where does “पृथा” come from?

पृथा (Sanskrit) comes from Sanskrit पथ, from Proto-Indo-Aryan patʰás, from Proto-Indo-Iranian patʰás, from Proto-Indo-European pent- — to pass; path.

Ancestry of “पृथा”, step by step

Step	Language	Word	Meaning
1	Sanskrit	पथ	way, road, path, course, route
2	Proto-Indo-Aryan	patʰás	—
3	Proto-Indo-Iranian	patʰás	—
4	Proto-Indo-European	pent-	to pass; path

पृथा — Etymology, Origin & Word History | Etymology Explorer