Trebuchet; Trebucket

Part of speech: noun (n.)

1. A cucking stool; a tumbrel. Cowell.

2. A military engine used in the Middle Ages for throwing stones, etc. It acted by means of a great weight fastened to the short arm of a lever, which, being let fall, raised the end of the long arm with great velocity, hurling stones with much force.

3. A kind of balance for weighing. [Obs.]