Where does “काषाय” come from?

काषाय (Sanskrit) comes from Sanskrit कषाय, from Proto-Indo-European kars-, from Proto-Indo-European ḱers- — to run.

काषाय (Sanskrit): brownish red; brown-red cloth or garment

Definitions

Step	Language	Word	Meaning
1	Sanskrit	कषाय	—
2	Proto-Indo-European	kars-	to rub, scrape, scratch; to scratch, scrape, rub,...
3	Proto-Indo-European	ḱers-	to run

काषाय — Etymology, Origin & Word History | Etymology Explorer