Bosavi languages

The Bosavi or Papuan Plateau languages belong to the Trans-New Guinea language family according to the classifications made by Malcolm Ross and Timothy Usher. This language family derives its name from Mount Bosavi and the Papuan Plateau.

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Bosavi
Papuan Plateau
Geographic distribution	Papuan Plateau, Papua New Guinea
Linguistic classification	Trans–New Guinea Bosavi
Language codes
Glottolog	bosa1245
Map: The Bosavi languages of New Guinea   The Bosavi languages   Other Trans–New Guinea languages   Other Papuan languages   Austronesian languages   Uninhabited

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Geographically, the Bosavi languages are situated to the east and south of the East Strickland group. They can be found around Mount Bosavi, located east of the Strickland River and southwest of the western edge of the central highlands of Papua New Guinea. Although no extensive subgrouping analysis has been conducted, Shaw's lexicostatistical study in 1986 provides some insights.

Based on this study, it is indicated that Kaluli and Sonia exhibit a significant lexical similarity of 70%, which is higher than any other languages compared. Therefore, it is likely that these two languages form a subgroup. Similarly, Etoro and Bedamini share a subgroup with a lexical similarity of 67%. The languages Aimele, Kasua, Onobasulu, and Kaluli-Sunia exhibit more shared isoglosses among themselves than with the Etoro-Bedamini group. Some of these shared isoglosses are likely to be innovations.^[1]