Within the field of linguistics

Linguistics

Linguistics is the scientific study of human language. Linguistics can be broadly broken into three categories or subfields of study: language form, language meaning, and language in context....

 the term logonym is used to refer to the name of a particular language, dialect

Dialect

The term dialect is used in two distinct ways, even by linguists. One usage refers to a variety of a language that is a characteristic of a particular group of the language's speakers. The term is applied most often to regional speech patterns, but a dialect may also be defined by other factors,...

, language variety. Logonyms may be either officially recognized names (e.g., via a governmental authority or the ISO 639-3

ISO 639-3

ISO 639-3:2007, Codes for the representation of names of languages — Part 3: Alpha-3 code for comprehensive coverage of languages, is an international standard for language codes in the ISO 639 series. The standard describes three‐letter codes for identifying languages. It extends the ISO 639-2...

 code) or less formalized or standardized names used by speakers or non-speakers to denote a particular language. The term logonym is sometimes used interchangeably with ethnonym

Ethnonym

An ethnonym is the name applied to a given ethnic group. Ethnonyms can be divided into two categories: exonyms and autonyms or endonyms .As an example, the ethnonym for...

; however, the former differs from the latter in applying specifically to the language rather than the clan or ethnic group. Thus, two different clans speaking the same language may have different ethnoyms but the same logonym.

The term logonym often appears in discussion of appropriateness or inappropriateness of particular appellations.