The term 'Rodeo Horse, Briefly' is a crossword solution that can be answered with the word 'BRONC, ' which is a five-letter word. A BRONC is a horse that is used in rodeos and is typically an untrained horse that is ridden by a cowboy or cowgirl. The term 'BRONC' is derived from the Spanish word 'BRONCO, ' which means 'ROUGH' or 'UNBROKEN.' Broncs are usually bred for their strength and agility, and they are often used in competitions such as barrel racing, calf roping, and bull riding.