Batak languages
The Batak languages are a subgroup of the Austronesian languages spoken by the Batak people in the Indonesian province of North Sumatra and surrounding areas.
"Batak language" redirects here. For the language of Palawan, see Batak language (Philippines).
The Batak languages can be shown to descend from a hypothetical common ancestor, Proto-Batak (which in turn originates from Proto-Austronesian). The sound system of Proto-Batak was reconstructed by Adelaar (1981).[5]
Final diphthongs: *-uy, *-ey, *-ow.
The Proto-Batak sounds underwent the following changes in the individual daughter languages:[5]