capellet

from The Century Dictionary.

• noun A kind of swelling like a wen, growing on the back part of a horse's hock, or on the point of the elbow. Also written capulet.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Far.) A swelling, like a wen, on the point of the elbow (or the heel of the hock) of a horse, caused probably by bruises in lying down.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A swelling, like a wen, on the point of the elbow (or the heel of the hock) of a horse, caused probably by bruises in lying down.