Petard (noun)

A small bomb used in siege warfare to blow open gates or walls.

Origin:

Derived from the french word 'pétard' meaning 'a kind of firework', a petard is a small bomb used in siege warfare to blow open gates or walls.

Examples:

1. The soldiers used a petard to blow open the castle gates.
2. Petards were commonly used during the medieval period in siege warfare.
3. The explosion of the petard was heard for miles around.
4. Petards were made from a mixture of gunpowder and other materials.
5. The petard was a dangerous and effective weapon during siege warfare.