Definitions for "Immurement"
The act of immuring, or the state of being immured; imprisonment.
the state of being imprisoned; "he was held in captivity until he died"; "the imprisonment of captured soldiers"; "his ignominious incarceration in the local jail"; "he practiced the immurement of his enemies in the castle dungeon"
Immurement is a form of execution where a person is walled up within a building and left to die from starvation or dehydration. This is distinct from a premature burial, where the victim typically dies of asphyxiation.