Stringhalt

Chambers's Encyclopaedia, Volume 9: Bound to Swansea, p. 769

Stringhalt is a peculiar catching up of the horse's limbs, usually of one or both hind-limbs. It is most noticeable when the animal is first brought out of the stable, when he is excited, or made to turn suddenly round; it is a variety of chorea or St Vitus's dance. Although it does not interfere with usefulness, it is a serious eyesore, and quite incurable, and considerably depreciates the value of the horse.

Source scan(s): p. 0788