stirrups is a form of:

Stirrup



noun
1.
(a metal or leather support for a rider's foot hanging from the saddle) ឈ្នាន់កែបសេះ
ENGLISH MEANING
noun
1.
A kind of ring, or bent piece of metal, wood, leather, or the like, horizontal in one part for receiving the foot of a rider, and attached by a strap to the saddle, -- used to assist a person in mounting a horse, and to enable him to sit steadily in riding, as well as to relieve him by supporting a part of the weight of the body.
2.
A rope secured to a yard, with a thimble in its lower end for supporting a footrope.
verb
1.
(INTRANSITIVE) Any piece resembling in shape the stirrup of a saddle, and used as a support, clamp, etc.