Mo·tive, a. Causing motion; having power to move, or tending to move; as, a motive argument; motive power. “Motive faculty.”
Motive power Mach., a natural agent, as water, steam, wind, electricity, etc., used to impart motion to machinery; a motor; a mover.
motive power
n : the power or ability to move [syn: locomotion, motivity]