from The Century Dictionary and Cyclopedia
- Having shoes not specially provided with cogs, calks, or spikes to prevent slipping: chiefly noting animals: opposed to rough-shod or sharp-shod.
Sorry, no etymologies found.
They were smooth-shod, and, the weight of the wagon being out of all proportion to their strength, they fell often in their futile struggles.
The hills were now grey glass, and all the horses smooth-shod.
On those cold days, drivers were demanding impossible things of smooth-shod horses on icy streets, and he saw many a noble beast on his knees, "begging me," as he said, "to get him a priest."
Rough-shod if need be, smooth-shod if that will do, but ride on!