Kembayan language

Kembayan, or Mateq (Mate’), is a Dayak language of Borneo.

Phonology

 * The phoneme /ᵐb/ is only attested in a single word that has likely been borrowed.

Additionally, the following diphthongs are attested: /ɨi/, /ai/, /oi/, /ia/, /ɨa/, /ua/, /io/, /ao/, /iu/, /au/, /ou/.