Where does “bʰástraH” come from?

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

Ancestry of “bʰástraH”, step by step

StepLanguageWordMeaning
1Proto-Indo-IranianbʰástraH—
2Proto-Indo-Europeanbʰéstreh₂—
3Proto-Indo-Europeanbʰes-wind; to blow, chew, rub; to rub, grind
Every word from Proto-Indo-European bʰes- →Every word from Proto-Indo-European bʰéstreh₂ →Every word from Proto-Indo-Iranian bʰástraH →