from The Century Dictionary and Cyclopedia
- n. A horse which goes between the thills or shafts and supports them.
Sorry, no etymologies found.
Lord worshipped might he be! what a beard hast thou got! thou hast got more hair on thy chin than Dobbin my thill-horse has on his tail.
A shoe coming loose from the fore-foot of the thill-horse, at the beginning of the ascent of Mount Taurira, the postillion dismounted, twisted the shoe off, and put it in his pocket.
A shoe coming loose from the fore foot of the thill-horse, at the beginning of the ascent of mount Taurira, the postilion dismounted, twisted the shoe off, and put it in his pocket; as the ascent was of five or six miles, and that horse our main dependence, I made a point of having the shoe fastened on again, as well as we could; but the postilion had thrown away the nails, and the hammer in the chaise box being of no great use without them, I submitted to go on.