What do you call a belt worn over one shoulder and typically used to carry a sword?

A baldric (also baldrick, bawdrick, bauldrick as well as other rare or obsolete variations) is a belt worn over one shoulder that is typically used to carry a weapon (usually a sword) or other implement such as a bugle or drum.

Baldrics have been used since ancient times, usually as part of military dress. The early Islamic Arabs wore baldrics with their armor. The design offers more support for weight than a standard waist belt, without restricting movement of the arms, and while allowing easy access to the object carried. For example, the late 18th-century British Army's distinctive "Red coat" uniform pattern featured a pair of white baldrics crossed at the chest, with a soldier's bayonet sheath suspended from one and his canteen suspended from the other. Alternatively, and especially in modern times, the baldric may fill a ceremonial role rather than a practical one.