Where does “bʰéstreh₂” come from?

bʰéstreh₂ (Proto-Indo-European) comes from Proto-Indo-European bʰes- — wind; to blow, chew, rub; to rub, grind.

Ancestry of “bʰéstreh₂”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	bʰes-	wind; to blow, chew, rub; to rub, grind

bʰéstreh₂ — Etymology, Origin & Word History | Etymology Explorer