Bayard
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): (a.) Properly, a bay horse, but often any horse. Commonly in the phrase blind bayard, an old blind horse.
(2): (a.) A stupid, clownish fellow.
The Nuttall Encyclopedia [2]
A horse of remarkable swiftness belonging to the four sons of Aymon, and which they sometimes rode all at once; also a horse of Amadis de Gaul.