verb

• (transitive) To cloister, confine, imprison or hole up: to lock someone up or seclude oneself behind walls.
  "The gentlemen looked at each other for a ſolution of this ſtrange event, each preſuming an order had been obtained to again immure the unfortunate Clara."
• (transitive) To put or bury within a wall.
  "John's body was immured Thursday in the mausoleum."
• (transitive, crystallography and geology, of a growing crystal) To trap or capture (an impurity); chiefly in the participial adjective immured and gerund or gerundial noun immuring.
  "1975, American Institute of Physics, American Crystallographic Association, Soviet Physics, Crystallography, Volume 19, Issues 1-3, page 296, On increasing the supercooling, the step starts completely immuring the impurity and v rises sharply."

noun

• (obsolete) A wall; an enclosure.
  "[…]Troy, within whose strong emures[…]"