What is "girthing"

Usage examples of "girthing".

Once inside the Palace, he bypassed the grand staircase and instead caught a lift tube to the girthing room.

If this strap of leather be an invention, entitling the inventor to a patent right, it can only extend to the strap, and the use of the string of buckets must remain free to be connected by chains, ropes, a strap of hempen girthing, or any other substance except leather.