nipata

nipāta-vega — the force of diving; SB 3.13.29
ati-ucca-nipāta — because of falling from a great height; SB 5.16.19
vajra-nipāta-śańkayā — by suspecting that thunderbolts were falling; SB 10.6.12
nipāta-vega — by the force of the fall; SB 10.16.7