trebuchet

A medieval siege engine consisting of a large pivoting arm heavily weighted on one end.

Medieval trebuchets are said to have been capable of launching 90-kg projectiles over distances of more than 300 meters.

With counterweight trebuchets at its disposal, a besieging force at last had the advantage in sieges, and it was probably the appearance of the trebuchet which prompted the changes in castle design from the mid-twelfth century onwards which were described in the previous chapter: the move from rectangular to round or multiform towers […]

A torture device for dunking suspected witches by means of a chair attached to the end of a long pole.

To shoot with a trebuchet.