immure

Our prison strong, this huge convex of Fire,
Outrageous to devour, immures us round

Milton, Paradise Lost 2.434-435

*

You are still kind whom the same shape immures.
Kind and beyond adieu. We miss our cue.
It is the pain, it is the pain endures.
Poise of my hands reminded me of yours.

William Empson, "Villanelle"