The Collaborative International Dictionary of English v.0.48:
Mure \Mure\, v. t. [imp. & p. p. Mured.] [F. murer, L. murare.
   See Mure, n.]
   To inclose in walls; to wall; to immure; to shut up.
   --Spenser.
   [1913 Webster]
         The five kings are mured in a cave.      --John. x.
                                                  (Heading).
   [1913 Webster]