Kiorr (Kha Kior) is a

Palaungic language The nearly thirty Palaungic or Palaung–Wa languages form a branch of the Austroasiatic languages. Phonological developments Most of the Palaungic languages lost the contrastive voicing of the ancestral Austroasiatic consonants, with the disti ...

of Luang Namtha Province,

Laos Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...

. Diffloth & Zide (1992) had listed Con as a

Lametic language Lamet is a Mon–Khmer language of Laos. There are also one hundred speakers in Lampang Province, Thailand, where it is known as ''Khamet''. Lamet speakers call their language �əmɛːt or less commonly ʰəmɛːtConver, Lynn C. 1999. "A Sketch ...

. However, it is treated as a dialect of Kiorr in Sidwell (2010). Kiorr could be a historical name for the Saamtaav people.Proschan, Frank. (1996)
A Survey of Khmuic and Palaungic Languages in Laos and Vietnam
In: Pan-Asiatic Linguistics Proceedings of the Fourth International Symposium on Languages and Linguistics. Institute of Language and Culture for Rural Development. Mahidol University at Salaya Thailand.

References

Palaungic languages Languages of Laos {{AustroAsiatic-lang-stub