Spancelling of a Horse
“...hobbled or fettered to a clog; said of a horse. When the bearing is properly depicted, a fore and a hind leg should have each a fetter-lock above the foot and fastened to the one end of a heavy clog.” —Whitney, 1889
Illustration of a shield with a depiction of a spancelled (spanceled) horse.
William Dwight Whitney, PhD, LLD The Century Dictionary: An Encyclopedic Lexicon of the English Language (New York, NY: The Century Co., 1895) 5793