Kayan language (Borneo)

Kayan (Kajan, Kayan proper) is a dialect cluster spoken by the Kayan people of Borneo. It is a cluster of closely related dialects with limited mutual intelligibility, and is itself part of the Kayan-Murik group of Austronesian languages.

Baram Kayan is a local trade language. Bahau is part of the dialect cluster, but is not ethnically Kayan.

Internal classification
Glottolog v4.8 classifies the Kayan dialect cluster as follows:

Phonology
The following is based on the Baram dialect:

Consonants

 * can be heard as either a tap or a trill  in free variation.
 * can be heard as when in free fluctuation with [k] in word-medial position.
 * can be realized as more fronted when preceding high vocoids.
 * may also be heard as a palatalized stop in free fluctuation.
 * may also be heard as in free variation, and may also fluctuate to a stop sound.

Vowels

 * Length [Vː] is said to occur in free variation or in word-final position.
 * can be heard as in initial or medial positions, or in free variation with.
 * can also be heard as in word-medial position.
 * can be heard as before a medial or final  or.
 * can be heard as when before a  or, or in fluctuation with.