A more thorough explanation:

A glaive is a type of weapon that was used in historical times. It could be a sword, a lance, or a staff used by a horseman. It was also allowed in a trial by combat.

During the medieval period, knights would often use a glaive in battle. It was a long weapon that could be used to strike from a distance, making it a useful tool for mounted combat.

Another example of a glaive is the Chinese guandao, which was a type of polearm used in ancient China. It had a curved blade on the end and was used by soldiers and martial artists.

These examples illustrate how a glaive could be used as a versatile weapon in different cultures and time periods.