To preserve a body by embalming and wrapping it in cloth, typically in the manner of ancient Egyptian practices. The ancient Egyptians would mummify their pharaohs to prepare them for the afterlife.
To dry up or shrivel something, often to the point of resembling a mummy. The hot, arid climate can mummify fruits left out in the sun.
To undergo mummification; to become dried out and preserved like a mummy. If the body is left in the desert heat, it will slowly mummify on its own.