Curtana, also Cortana or Courtain, is a latinized form of the Anglo-French curtein, from Latin curtus, 'shortened', used for a type of sword.
The Curtana is one of five swords used at the coronation of the kings and queens of England. Carried in the coronation procession between the Sword of Temporal Justice and the Sword of Spiritual Justice, the Curtana symbolizes the mercy of the sovereign: acccording to the mythological history of the sword, it's tip was broken off by an angel to prevent a wrongful killing. The three swords are believed to have been made for the coronation of Charles I of England, and were among the few items of the crown jewels to escape being melted down by Oliver Cromwell.
Curtana was also, according to legend, the sword of Ogier the Dane; it bore the inscription My name is Cortana, of the same steel and temper as Joyeuse and Durendal.