galloper

intransitive verb

1. to go at a gallop
2. to move, progress, or act very fast; hurry

Origin: ME galopen < OFr galoper < Frank *walahlaupan, to run well < *wala, akin to well + *hlaupan, to run, akin to leap

transitive verb

noun

1. the fastest gait of a horse or other animal, consisting of a succession of leaping strides with all the feet off the ground at one time
2. a ride on a galloping animal
3. any fast pace, speedy action, or rapid progression

Origin: OFr galop