What is "rounsey"

Usage examples of "rounsey".

Clad in court attire covered for protection from the elements and journey soil with jackboots and a hooded cloak, Bass forked a dark bay rounsey troop horse.

Then it had become the turn of the horses, one or two at the time, taking the rounseys, amblers, and palfreys first, rather than the high horses and trained destriers.