Mystery Theme #LP9 by PolinskyL

Question 5

What one word goes into both of the blanks in this description of a medieval method of capital punishment? "Firstly, the delinquent is placed belly down, bound to a board, and dragged by a horse to the place of execution. The _____ is then slammed two times on each arm, one blow above the elbow, the other below. Then, each leg gets the same treatment, above and below the knees. The final ninth blow is given at the middle of the spine, so that it breaks. Then, the broken body is woven onto the ______. The criminal is then to be left dying "afloat" on it, and be left to rot." Note: the same one word fills both blanks. The answer is one word.One. Word.