انصمى عَلَيْهِ

He darted down, or rushed, (اِنْصَبَّ, S, K, or اِنْقَضَّ, M, [both meaning the same,]) upon him, (S, M, K,) and advanced towards him (M,) to which Az adds, like as the hawk, or falcon, darts down (يَنْصَمِى, i. e. يَنْقَضُّ). (TA.)