A word I just learned…

… reading an AFP story:

immurement

“Locals in the village of Brugairolles in the foothills of the Pyrenees were so appalled by the immurement, they rose up to rescue the elderly couple, tearing down a wall from the front of the house and ripping open windows and doors that had been nailed shut.”

From the Latin murus, or wall, which shows up in English words like mural.