Kuki-Chin-Naga
Updated March 2021
The Southern Kuki-Chin-Naga languages clearly form a coherent branch. My classification is as follows.
Southern Kuki-Chin-Naga branch
Greater Zeme ("Western Naga")
Zeme, Mzieme, Liangmei
Nruanghmei
Maram
Khoirao
Puiron
Greater Tangkhulic
Akyaung Ari
Tangkhulic
Maring, Khoibu
Kokak
Suansu (?)
"Southern Naga" ( = Northwestern Kuki-Chin)
Kuki-Chin
Northern
Central
Maraic
Southern
Khomic
Central Naga and Angami-Pochuri may or may not group with each other. They may have had separate origins and then converged to form an Ao-Angami (Northern Kuki-Chin-Naga) linguistic area. Coupe's (2012) argument for an Ao-Angami branch based on numeral overcounting looks to me like an areal rather than genetic feature. My classification is as follows.
March 2021 update: Based on my preliminary inspection of Suansu data from Ivani (2019), Suansu may be another independent branch of Southern Kuki-Chin-Naga, although lexical influence from Core Tangkhulic is evident. A detailed analysis of its classification has yet to be done. Suansu is spoken in the northeastern corner of Manipur state.
Northern Kuki-Chin-Naga linguistic area
Greater Central Naga
Makury
Long Phuri
Para (Jejara)
Central Naga
Lotha
Sangtam
Yimchungrü
Ao
Angami-Pochuri
Angamic-Sumic
Angamic
Angami, Chokri
Khezha
Mao
Poumai
Sumic
Sumi
Rengma
Pochuric
Meluri
Ntenyi
The Northern Kuki-Chin-Naga languages also belong to the Kuki-Chin-Naga branch, but display influences from other unknown branches of Sino-Tibetan (i.e., non-Kuki-Chin-Naga substrata) due to their more northerly location. I suspect that Central Naga and Angami-Pochuri may each contain substrata from "missing" Eastern Sino-Tibetan branches, but this has yet to be formally demonstrated.
Karbi and Meithei each constitute independent primary branches of Kuki-Chin-Naga.
Several recently documented divergent "Naga" languages of Myanmar, such as Koki, Long Phuri, Makury, and Para have also been included.
Angami-Pochuri and Zeme still suffer from a lack of up-to-date detailed phonetic data. Thus, these branches have not yet been reconstructed to due such difficulties.
Lexical isoglosses
Numerous Kuki-Chin-Naga lexical isoglosses and innovations can be identified for Kuki-Chin-Naga. Thus, Kuki-Chin-Naga is likely a coherent, reconstructable branch, although Central Naga and Angami-Pochuri may have non-Kuki-Chin-Naga substrata.
Sources
Bruhn, Daniel; Lowe, John; Mortensen, David; Yu, Dominic (2015). Sino-Tibetan Etymological Dictionary and Thesaurus Database Software. Software, UC Berkeley Dash. doi:10.6078/D1159Q
DeLancey, Scott. 2015. "Morphological Evidence for a Central Branch of Trans-Himalayan (Sino-Tibetan)." Cahiers de linguistique - Asie oriental 44(2):122-149. December 2015. doi:10.1163/19606028-00442p02
Bruhn, Daniel W. 2014. A phonological reconstruction of Proto-Central Naga. Ph.D. Dissertation, University of California, Berkeley.
Mortensen, David R. 2012. Database of Tangkhulic Languages. (unpublished ms. contributed to STEDT).
VanBik, Kenneth. 2009. Proto-Kuki-Chin: A reconstructed ancestor of the Kuki-Chin languages. STEDT Monograph Series 8. Berkeley, CA: STEDT.
Khoi Lam Thang. 2001. A phonological reconstruction of Proto Chin. M.A. Dissertation, Payap University.
Button, Christopher. 2011. Proto Northern Chin. STEDT Monograph Series 10. Berkeley, CA: STEDT.
Ivani, Jessica Katiuscia. 2019. A first overview of Suansu, a Tibeto-Burman language from Northeastern India. Paper presented at the Southeast Asian Linguistics Society [SEALS] 29, 27-29 May 2019, Tokyo, Japan.
Reconstruction of Proto-Kuki-Chin-Naga (Hsiu 2019)