Pommel

Part of speech: noun (n.)

1. A knob or ball; an object resembling a ball in form; as:

2. The knob on the hilt of a sword. Macaulay.

3. The knob or protuberant part of a saddlebow.

4. The top (of the head). Chaucer.

5. A knob forming the finial of a turret or pavilion.

Part of speech: verb (v.)

To beat soundly, as with the pommel of a sword, or with something knoblike; hence, to beat with the fists. [Written also pummel.]