IPA: /ɪnˈtoʊm.mənt/
KK: /ɪnˈtoʊm.mənt/
The process of placing a dead body in a tomb or grave, or the condition of being buried in such a way.
The ancient Egyptians practiced elaborate entombment rituals for their pharaohs.
Entombment → It is formed from "en-" (meaning to cause to be in) and "tomb" (from Old English "tumba", meaning a burial place) and the suffix "-ment" (meaning the action or result of). The word "entombment" refers to the act of placing someone in a tomb or burial place.
Think of being 'caused to be in' a 'burial place' — that's what entombment means.