Where does “वर्षा” come from?

वर्षा (Hindi) comes from Sanskrit वर्षा, from Sanskrit व॒र्ष, from Proto-Indo-European h₁wers- — to rain.

वर्षा (Hindi): rain

Definitions

Step	Language	Word	Meaning
1	Sanskrit	वर्षा	rain; the rains, rainy season, monsoon; Medicago...
2	Sanskrit	व॒र्ष	—
3	Proto-Indo-European	h₁wers-	to rain

वर्षा — Etymology, Origin & Word History | Etymology Explorer