"Burushaski is a “language isolate” sometimes referred to as the “South Asian Basque”. It is an unclassified language, unrelated to any known language/family. Other languages designated as so-called “language-isolates” are Basque, the language of Yenesian Kets, the Niwch and the Yukaghir language. Almost all these language-isolates are in regions of “linguo-ecological risk…..They have come to a threshold from where the perspective of language death can be perceived” (Neroznak, 1997 in his foreword to Čašule, 1998). Several attempts to establish areal, genetic, and typological links between these language isolates and the languages of known linguistic families have been carried out in comparative linguistic studies and studies on contact linguistics."
