ETYM Old Eng. harneis, harnes, Old Fren. harneis, French harnais, harnois; of Celtic origin; cf. Armor. harnez old iron, armor, W. haiarn iron, Armor. houarn, Irish iarann, Gael. iarunn. Related to Iron.
1. An arrangement of leather straps fitted to a draft animal so that it can be attached to and pull a cart.
2. An arrangement of straps for holding something to the body (especially one supporting a person suspended from a parachute).
1. To control and direct with or as if by reins; as of a horse; SYN. rein in, draw rein, rein.
2. To exploit the power of.
3. To put a harness on; of animals such as horses.