A horse used or adapted for use in drawing a coach.(noun)
The Century Dictionary (Public Domain)
Use "coach-horse" in a sentence
"They might just as well have settled that he was a coach-horse, and could just as easily have called him one."
"Instead of keeping his promise to the valet, he put the money in his pocket; and the fellow returned in a rage, exclaiming that he was un gros cheval de carosse, a great coach-horse."
"To say nothing of the Nucleus; that is, of Obadiah and the coach-horse. —"