Other forms: packhorses
A packhorse is an animal used to carry goods on its back. A packhorse bridge, lead the packhorse, packhorse trains.
Whole trade routes ran on them before roads were made up, and the narrow humpbacked packhorse bridges across northern England were built for exactly that traffic. A horse carries far less than a cart but goes where no cart can.
1nounpackhorseAn animal used to carry goods on its back.
“The traders loaded salt and cloth onto packhorses for the long trip over the mountains.”
packhorse is a horse.
Pack plus horse, from the packs strapped to the animal's back.
Middle English
palhors
English, today
packhorse
From pack + horse, possibly (from an uncertain date) via Middle English palhors (read pakhorse).
Etymology from Wiktionary, CC BY-SA