gal•lopˈgæl əp(v.i.)

1. to ride a horse at a gallop; ride at full speed.

2. to run rapidly by leaps, as a horse; go at a gallop.

3. to go fast, race, or hurry, as a person or time.

4. (v.t.)to cause (a horse or other animal) to gallop.

5. (n.)a fast gait of the horse or other quadruped in which, in the course of each stride, all four feet are off the ground at once.

6. a run or ride at this gait.

7. a rapid rate of going.

8. a period of going rapidly.

Origin of gallop:

1375–1425; < OF galoper (see well1, leap )

gal′lop•er(n.)