Excalibur  (eks-kal ´i-bẽr ), or Excalibar , or Escalibor .—The sword of the mythical King Arthur. Arthur received it from the hands of the Lady of the Lake. It had a scabbard the wearer of which could lose no blood. There seems, however, to have been also another sword called Excalibur in the early part of the story. This was the sword, plunged deep into a stone, which could be drawn forth only by the man who was to be king. After two hundred knights had failed, Arthur drew it out without difficulty.