Galoper

Part of speech: noun

Definitions

1. One who moves or runs quickly, often at a gallop
2. A horse that gallops or runs at high speed
3. An individual or creature characterized by their rapid, spirited movement in a galloping manner

Etymology: "Galoper" is a transparent agent noun: the verb "gallop" plus the suffix "-er," so it names whoever or whatever gallops. The verb came into English from Old French "galoper," which is probably from a Frankish compound, "walhlaupan," meaning "to run well," built from elements for "well" and "to leap or run." The idea of fast, bounding motion was there from the start, and the noun simply names the one doing it.