harness

a support consisting of an arrangement of straps for holding something to the body (especially one supporting a person suspended from a parachute)

stable gear consisting of an arrangement of leather straps fitted to a draft animal so that it can be attached to and pull a cart

put a harness; "harness the horse"

exploit the power of; "harness natural forces and resources"

control and direct with or as if by reins; "rein a horse"

keep in check; "rule one's temper"