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]