Dialect and oral traditions
The defining linguistic fact of this upland is not any one language but the coexistence of two entire families inside a day's walk. Dravidian languages — Kui, Kuvi, Parji, Ollari — and Munda languages — Sora, Gutob, Remo, Gorum — are spoken in adjacent valleys, and neither family is an intrusion into the other's territory; both have been here long enough that the boundaries are village-by-village rather than block-by-block. Over that sits Desia, an Odia contact variety with simplified verb morphology and heavy borrowing from both families, which almost nobody claims as a mother tongue and almost everybody uses in the market. The state's multilingual education programme teaches early primary classes in several of these languages, which is one of the few places their orthographies are settled at all.
Speech varieties
DesiaIndo-Aryan, Odia
Also called Koraputia. A trade and inter-community speech with a reduced verb system, Odia core vocabulary and Dravidian and Munda loans. Being nobody's first language is precisely what makes it usable.
Speakers: Used as a second language across the highland; rarely returned as a mother tongue
KuiDravidian, South-Central
The language of the largest Adivasi population in this belt. Written in the Odia script where written at all, and closely related to Kuvi and to Gondi further west.
Speakers: Several lakh, concentrated in the Kondh uplands
KuviDravidian, South-Central
Spoken by the Kondh of the Koraput and Rayagada hills, including the Dongria of Niyamgiri. Mutually partially intelligible with Kui, and treated locally as the same speech with a different accent.
Speakers: Well over a lakh
ParjiDravidian, Central
The Paraja language, spoken across the plateau and continuing into Bastar. Many people identified as Paraja now speak Desia as their first language, so the community and the language no longer map onto each other.
Gutob and OllariMunda (Gutob) and Dravidian (Ollari)
Two communities both called Gadaba speak languages from two different families — Gutob is Munda, Ollari is Dravidian. It is the single clearest illustration that community names in this region were assigned from outside and do not track descent or speech.
RemoMunda
The Bonda language. Remo means simply "man" and is what its speakers call themselves; Bonda is the name used from below the hill.
Speakers: A few thousand, in the Bonda hills
SoraMunda
Spoken in the eastern uplands towards Gunupur and Puttasingi. It has its own script, Sorang Sompeng, devised in the 1930s for the language rather than adapted from an existing one — a rare thing among Indian languages of this size.
KosliIndo-Aryan, Odia
The speech of the Bolangir and Kalahandi lowland, also called Sambalpuri, with its own literature, its own festival calendar and a long-running claim to separate language status.
Indigenous terminology
Sayings