gallop (n.)

"a leaping gait," the most rapid movement of a horse, 1520s, from gallop (v.).

gallop (v.)

"move or run by leaps," early 15c., from Old French galoper "to gallop" (12c.), central Old French form of Old North French waloper, probably from Frankish *wala hlaupan "to run well" (see wallop). Related: Galloped; galloping. Though the French word is Germanic, Dutch galopperen, German galoppiren, Swedish galoppera are from French.