mountain between Nepal and Tibet, named 1865 for Sir George Everest (1790-1866), surveyor-general of India. The Tibetan name is Chomolangma "mother goddess of the world." Everest's surname is said in name-books to be a variant of Devereux, a Norman name, from Evereux/Evreux in France, which from a Celtic tribal name (Latin Eburovices) based on the Ebura (modern Eure) river.