1. (n.) The driver of a pack horse.

2. (n.) A pack; a burden.

3. (n.) An animal, especially a horse, that carries packs or burdens; a baggage horse.

4. (a.) Carrying pack or burdens on the back; as, a sumpter horse; a sumpter mule.

Siberian husky ass beast of burden bidet camel carriage horse cart horse cavalry horse draft animal draft horse dray horse driving horse dromedary elephant fill horse filler gigster hack hackney hinny horse hunter husky jennet jument lead leader llama malamute mount mule ox pack horse palfrey plow horse pole horse polo pony post-horse reindeer remount rider riding horse road horse roadster rouncy saddle horse saddler shaft horse sledge dog stalking-horse sumpter horse sumpter mule thill horse thiller wheeler wheelhorse workhorse