|Region||Misool, Raja Ampat islands|
Matbat is a heavily Papuan-influenced Austronesian language spoken in West Papua, Indonesia, on the island of Misool, Raja Ampat islands. Its dialects are Magey and Tomolol.: 17 Similar to the neighboring Ma'ya language, Matbat is one of a handful of Austronesian languages with true lexical tone rather than a pitch-accent system or complete lack of phonemic tonal contrasts as with most other Austronesian languages.
Matbat is spoken in the following locations within Raja Ampat Regency:
The phonology of the Matbat language is summarized below:
|Plosive||p b||t d||k g|
/j/ can be heard freely as [ʝ] or [ɟ] in word-initial position.
Matbat has five lexical tones: high falling ˥˩ 41, high ˦ 3, low rising ˩˨ 12, low level ˩ 1, and low falling ˨˩ 21, which in open syllables has a peaking allophone, ˩˨˩ 121. Most Matbat words are monosyllabic; additional syllables in polysyllabic words are often weak and toneless, though a few words do have two tonic syllables. Examples of some of the longer monomorphemic words are /kamow˩˨/ 'star', /wuj˦te/ 'sea shore', /sapu˥˩luj˩˨/ 'round', /bim˦bom˩˨˩pu/ 'butterfly'.
Tonogenesis in Matbat remains unclear. Some Matbat reflexes of Proto-Malayo-Polynesian (PMP) proto-forms are listed below.: 658–659