Where does “təpʰ-” come from?
təpʰ- (Proto-Indo-European) comes from Proto-Indo-European stepʰ-, from Proto-Indo-European stebʰ- — to stand still; to harden.
təpʰ- (Proto-Indo-European) comes from Proto-Indo-European stepʰ-, from Proto-Indo-European stebʰ- — to stand still; to harden.