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Etymology and meaning

The English word mummy is derived from medieval Latin Mumia, a borrowing of the medieval Arabic word mūmiya (مومياء) which meant an embalmed corpse, as well as the bituminous embalming substance. This word was borrowed from Persian where it meant asphalt, and is derived from the word mūm meaning wax. The meaning of "corpse preserved by desiccation" developed post-medievally. The Medieval English term "mummy" was defined as "medical preparation of the substance of mummies", rather than the entire corpse, with Richard Hakluyt in 1599 AD complaining that "these dead bodies are the Mummy which the Phisistians and Apothecaries doe against our willes make us to swallow". These substances were called mummia.

The OED defines a mummy as "the body of a human being or animal embalmed (according to the ancient Egyptian or some analogous method) as a preparation for burial", citing sources from 1615 AD onward. However, Chamber's Cyclopædia and the Victorian zoologist Francis Trevelyan Buckland define a mummy as follows: "A human or animal body desiccated by exposure to sun or air. Also applied to the frozen carcase of an animal imbedded in prehistoric snow".

Wasps of the genus Aleiodes are known as "mummy wasps" because they wrap their caterpillar prey as "mummies".