GALLOP, in the manège, is the swiftest natural pace of a horse, performed by reaches or leaps; the two fore feet being raised almost at the same time; and when these are in the air, and just ready to touch the ground again, the two hind feet are lifted almost at once. The word is borrowed from the barbarous Latin calupare, or calpare, "to run." Some derive it from caballicure; others from the Greek καλαζω, to spur a horse.