immurement

thumb|The execution of serial killer [[Hadj Mohammed Mesfewi]] Immurement (; ), also called immuration or live entombment, is a form of imprisonment, usually until death, in which someone is placed within an enclosed space without exits. This includes instances where people have been enclosed in extremely tight confinement, such as within a coffin. When used as a means of execution, the prisoner is simply left to die from starvation or dehydration. This form of execution is distinct from being buried alive, in which the victim typically dies of asphyxiation. By contrast, immurement has also occasionally been used as an early form of life imprisonment, in which cases the victims were regularly fed and given water. There have been a few cases in which people have survived for months or years after being walled up, as well as some people, such as anchorites, who were voluntarily immured.

Notable examples of immurement as an established execution practice (with death from thirst or starvation as the intended aim) are attested. In the Roman Empire, Vestal Virgins faced live entombment as punishment if they were found guilty of breaking their chastity vows. Immurement has also been well established as a punishment of robbers in Persia, even into the early 20th century. Some ambiguous evidence exists of immurement as a practice of coffin-type confinement in Mongolia. One famous, but likely mythical, immurement was that of Anarkali by Emperor Akbar because of her supposed relationship with Prince Saleem.