Kaloeng language

Kaloeng (Kalerng, Kaleung) is a Southwestern Tai language of Thailand and Laos.
Distribution.
In Thailand, Kaloeng is spoken in Sakon Nakhon Province, Nakhon Phanom Province, and Mukdahan Province (Trongdee 2016). In Laos, it is spoken in Khammouan Province.
External classification.
Mudjalin Luksanawong classifies the Kaloeng language as part of the Sakon Nakhon subbranch of the Southwestern Tai.
In the Sakon Nakhon languages, Proto-Tai *hw- and *w- (Pittayaporn 2009:134-135) became /ph/- (Trongdee 2016:55). Also, the Sakon Nakhon languages display the uncommon labiovelar initial clusters thw-, cw-, sw-, hw-, ŋw-, lw-, ʔw- (Trongdee 2016:56).
Internal classification.
Thananan Trongdee classifies the Kaloeng dialects as follows according to the evolution of the Proto-Kaloeng diphthong *-aɯ.