rec⋅luse

- noun
1. a person who lives in seclusion or apart from society, often for religious meditation.
2. a religious voluntary immured in a cave, hut, or the like, or one remaining within a cell for life.
- adj.
3. shut off or apart from the world; living in seclusion, often for religious reasons.
4. characterized by seclusion; solitary.

im⋅mure

- verb
1. to enclose within walls.
2. to shut in; seclude or confine.
3. to imprison.
4. to build into or entomb in a wall.
5. to surround with walls; fortify.