A sword on a stick is commonly referred to as a polearm or pole weapon. Polearms are a class of weapons that combine a long pole or staff with a blade, spike, or other cutting or piercing implement at the end. These weapons were historically used in warfare for their extended reach, versatility, and effectiveness against both mounted and foot soldiers.

There are various types of polearms, and the specific names can vary depending on the design and region. Here are a few examples:

1. Naginata: A Japanese polearm characterized by a curved blade mounted on a long staff. It was commonly used by samurai and warrior monks in feudal Japan.
2. Halberd: A European polearm featuring a large axe-like blade on one side, a spike or point on the other, and often a hook or cleaver-like attachment on the back. The halberd was a versatile weapon used during the medieval period.
3. Glaive: A European polearm with a single-edged blade attached to a long pole. The blade can be straight or curved, and it often has a cutting edge on one side and a blunt or hook-like back edge.
4. Yari: A Japanese spear with a straight, double-edged blade mounted on a long shaft. The yari was a common weapon among samurai and infantry in feudal Japan.

These are just a few examples of polearms, and there are many more variations depending on cultural and historical contexts. Polearms were valued for their reach and versatility, combining elements of both swords and spears to create effective weapons for warfare.