Wiktionary
n. Any of several types of spear with a long sharp end and two projections on each side.
Wikipedia
A ranseur (also called a runkah or a rawcon [sometimes incorrectly referred to as rawcuer]) is a type of polearm used across Europe up to the 15th century. It was still seen in court as a ceremonial weapon through the 17th century. Often thought to be a derivation of the earlier spetum, the head of a ranseur consists of a spear-tip affixed with a cross hilt at its base. Often this hilt is crescent-shaped, giving it an appearance similar to that of a trident. Generally, the hilts do not have a cutting edge, unlike the double-edged partisan. Ranseurs are generally six feet or longer.
The spearing function of the weapon is apparent but not always effective against armor of great protection, and the deflection includes the trapping of opponent weapons in the space below the main blade, where a twist of the shaft can apply pressure from that moment on at long range and of pulling mounted opponents from the saddle.
Usage examples of "ranseur".
Set against the back of the inner tree trunk, running right up into the tree, were a variety of spears, including one metal-shafted ranseur, a ten-foot-long pike with a long and pointed head and two smaller barbs sticking out to the sides near the tip.
He went back to the weapons cache and got the tall and heavy ranseur he had seen earlier.
TFNS Mars and Triomphant had both lost too many engine rooms to keep up on the desperate, high-speed voyage from New Bristol, and he had no idea how the battlecruisers Ranseur and Pikeaxe had managed to keep their drives on-line.