Тілдің жоғалуы және тілсіздену процесі

Process in which a language eventually loses its last native speaker

In linguistics, language death occurs when a language loses its last native speaker. By extension, language extinction is when the language is no longer known, including by second language speakers, when it becomes known as an extinct language. A related term is linguicide, the death of a language from natural or political causes, and, rarely, glottophagy, the absorption or replacement of a minor language by a major language. Language death is a process in which the level of a speech community's linguistic competence in their language variety decreases, eventually resulting in no native or fluent speakers of the variety. Language death can affect any language form, including dialects. Language death should not be confused with language attrition (also called language loss), which describes the loss of proficiency in a first language of an individual. In the modern period (c. 1500 CE–present; following the rise of colonialism), language death has typically resulted from the process of cultural assimilation leading to language shift and the gradual abandonment of a native language in favour of a foreign lingua franca, largely those of European countries. As of the 2000s, a total of roughly 7,000 natively spoken languages existed worldwide. Most of these are minor languages in danger of extinction; one estimate published in 2004 expected that some 90% of the currently spoken languages will have become extinct by 2050. Ethnologue recorded 7,358 living languages known in 2001, but on 20 May 2015, Ethnologue reported only 7,102 known living languages; and on 23 February 2016, Ethnologue reported only 7,097 known living languages.

Within Indigenous communities, the death of language has consequences for individuals and the communities as a whole. There have been links made between their health (both physically and mentally) and the death of their traditional language. Language is an important part of their identity and as such is linked to their well being. One study conducted on aboriginal youth suicide rates in Canada found that Indigenous communities in which a majority of members speak the traditional language exhibit low suicide rates while suicide rates were six times higher in groups where less than half of its members communicate in their ancestral language. Another study was also conducted on aboriginal peoples in Alberta Canada and there was a link found between their traditional language knowledge and the prevalence of diabetes. The greater their knowledge was of their traditional language, the lower the prevalence of diabetes was within their communities.

Linguists distinguish between language "death" and the process where a language becomes a "dead language" through normal language change, a linguistic phenomenon analogous to pseudoextinction. This happens when a language in the course of its normal development gradually morphs into something that is then recognized as a separate, different language, leaving the old form with no native speakers. Thus, for example, Old English may be regarded as a "dead language" although it changed and developed into Middle English, Early Modern English and Modern English. Dialects of a language can also die, contributing to the overall language death. For example, the Ainu language is slowly dying: "The UNESCO Atlas of the World's Languages in Danger lists Hokkaido Ainu as critically endangered with 15 speakers and both Sakhalin and Kuril Ainu as extinct." The language vitality for Ainu has weakened because of Japanese becoming the favoured language for education since the end of the nineteenth century. Education in Japanese heavily impacted the decline in use of the Ainu language because of forced linguistic assimilation.

The process of language change may also involve the splitting up of a language into a family of several daughter languages, leaving the common parent language "dead". This has happened to Latin, which (through Vulgar Latin) eventually developed into the Romance languages, and to Sanskrit, which (through Prakrit) developed into the New Indo Aryan languages. Such a process is normally not described as "language death", because it involves an unbroken chain of normal transmission of the language from one generation to the next, with only minute changes at every single point in the chain. Thus with regard to Latin, for example, there is no point at which Latin "died"; it evolved in different ways in different geographic areas, and its modern forms are now identified by a plethora of different names such as French, Portuguese, Spanish, Italian, etc. Language shift can be used to understand the evolution of Latin into the various modern forms. Language shift, which could lead to language death, occurs because of a shift in language behaviour from a speech community. Contact with other languages and cultures causes change in behaviour to the original language which creates language shift. A noteworthy publishing milestone in measuring language vitality is an entire issue of Journal of Multilingual and Multicultural Development devoted to the study of ethnolinguistic vitality, Vol. 32.2, 2011, with several authors presenting their own tools for measuring language vitality. A number of other published works on measuring language vitality have been published, prepared by authors with varying situations and applications in mind. These include works by Arienne Dwyer, Martin Ehala, M. Lynne Landwehr, Mark Karan, András Kornai, and Paul Lewis and Gary Simons.