Demonym
Demonym (; δῆμος dẽmos 'people, tribe', ὄνομα ónoma 'name') is a word to identify residents or natives of a particular place, which is derived from the name of that particular place. It is a recently minted term; previously, gentilic was used by the Oxford English Dictionary.
Examples of demonyms include Chinese for the natives of China, Swahili for the natives of the Swahili coast, and American for the natives of the United States of America (or sometimes for the natives of the Americas).
Just as Americans may refer to two different groups of natives, some particular groups of people may be referred to by multiple demonyms. For example, the natives of the United Kingdom are the British, or the Britons. In English, demonyms are capitalized.
In languages other than English, a parallel demonym sometimes does not exist, which may lead to the use of an English demonym as a nickname or descriptive adjective of a group of people. The term has not been adopted by the Oxford English Dictionary or the Merriam-Webster dictionary.