Waimoa language

Waimoa or Waimaa is a language spoken by about 27,000 (2015 census) people in northeast East Timor. Waimoa proper is reported to be mutually intelligible with neighboring Kairui and Midiki, which together have about 5,000 speakers.

The classification of Waimoa is unclear. Structurally, it is Malayo-Polynesian. However, its vocabulary is largely Papuan, similar to that of Makasae. Although generally classified as Austronesian languages or dialects that have been largely relexified under the influence of a language related to Makasae, it is possible that Waimoa, Kairui, and Midiki are instead Papuan languages related to Makasae which have been influenced by Austronesian.

Phonology
Similarly to other Austronesian languages of the region, Waimoa has aspirated/voiceless and glottalized/ejective consonants, which are distributed like and  consonant clusters (or perhaps  and ) but are often pronounced as single segments.

Similarly there are voiceless and glottalized.

There is also vowel harmony.