Webster's Revised Unabridged Dictionary · 1913

Immure

Immure , transitive verb

[Prefix im- in + mure: compare French emmurer.]

1.
To wall around; to surround with walls. [Obsolete] — Sandys
2.
To inclose within walls, or as within walls; hence, to shut up; to imprison; to incarcerate.
Those tender babes Whom envy hath immured within your walls. — Shakespeare
This huge convex of fire, Outrageous to devour, immures us round. — Milton

Immure , noun

A wall; an inclosure. [Obsolete] — Shakespeare