DCHP-1 Online
diamond hitch † 
1 a complicated hitch used in securing a pack on a horse, about forty feet of rope being thrown back and forth over the animal in such a way that it forms a diamond pattern on top.
2 throw a diamond hitch, See note.
- Since the rope used is thrown from one side of the horse to the other, a diamond hitch is said to be "thrown" and not "tied."