excalibur

Excalibur is the name most widely accepted of the legendary sword of King Arthur, which have been attributed various extraordinary properties throughout the many versions of the myth and the stories that follow. There are several theories about the origin of its name. One of the most widely accepted is that it comes from the Latin Ex Liberatus Shim: Freed from the stone. 

Still, in many writings have been called in different ways and may present name derives from one of these: Caliburn, in the writings of Geoffrey of Monmouth probably derived from the Latin word Chalybs: steel; in ancient Welsh story 'Culhwch and Olwen 'is the name it derives from the Gaelic Caledfwlch old Caladbolg: sword flashing. It is accepted that the name was given by the Anglo-Norman. 

 The most accepted story is that in which Arthur, dying, ordered one of his knights tothrow his sword into the pond in which he lives Nimue, Lady of the Lake. This gentleman, who first disobeyed, then accept the order with great reluctance, is called Griflet, Bedivere, Lancelot or Perceval, according to the story.

When the knight throws the sword into the pool, wearing a white silk hand (Nimue) arises from the water surface, takes the sword and then disappears into the depths. This story about the return of Excalibur to the lake could be based on the customs of some Celtic peoples to throw lakes belongings of the great warriors who had just died as offerings to their gods.It is also said that the sword rests with the King in Avalon awaiting the day of his return.