• (n.) A little boot, legging, or gaiter. • (n.) A covering for the foot or hand, worn as a cure for the gout.
Boot'i·kin noun [ Boot + - kin .] 1. A little boot, legging, or gaiter. 2. A covering for the foot or hand, worn as a cure for the gout. H. Walpole. 
A bootikin was a wood and iron boot used in torture to extract confessions from the victim. Wooden wedges were hammered between the leg and the boot with a mallet so as to crush the victims bone.