n.
1.a support consisting of an arrangement of straps for holding something to the body (especially one supporting a person suspended from a parachute)
2.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 harness v.
1.put a harness
2.exploit the power of
3.control and direct with or as if by reins
4.keep in check