Mummius is an archaic term that refers to a mummy or a preserved corpse. While this term may not be commonly used today, there are plenty of synonyms that can be employed in its place. Some of the most popular synonyms for mummius include cadaver, corpse, embalmed body, dried remains, and preserved body. Other related words that can be used to describe a mummified corpse include desiccated remains, fossilized remains, and petrified remains. Whether you are writing a historical or fictional story that involves an ancient corpse, there are plenty of words that you can use to accurately convey the sense of age and preservation that defines a mummy.