Sheko language

Sheko is an Omotic language of the Afro-Asiatic language family spoken in the area between Tepi and Mizan Teferi in western Ethiopia, in the Sheko district in the Bench Maji Zone. The 2007 census lists 38,911 speakers; the 1998 census listed 23,785 speakers, with 13,611 identified as monolinguals.

Sheko, together with the Dizi and Nayi languages, is part of a cluster of languages variously called "Maji" or "Dizoid".

The language is notable for its retroflex consonants (Aklilu Yilma 1988), a striking feature shared with closely related Dizi and nearby (but not closely related) Bench (Breeze 1988).

Phonology
Apart from the above-mentioned retroflex consonants, the phonology of Sheko is characterized by a total 28 consonant phonemes, five long vowels and six short vowels, plus four phonemic tone levels.

Consonants
Hellenthal (2010, p. 45) lists the following consonant phonemes of Sheko:

Unlike other Dizoid languages, Sheko has no contrast between and. Consonants are rarely geminated, and there is a syllabic nasal

Vowels
Hellenthal (2010, p. 56) lists the following long and short vowels of Sheko:, , , , , , , , ,.

Tones
Sheko is one of very few languages in Africa that have four distinct phonemic tone levels. Tone distinguishes meaning both in the lexicon and in the grammar, particularly to distinguish persons in the pronominal system.

Grammar
Ethnologue lists the following morphosyntactic features: "SOV; postpositions; genitives, articles, adjectives, numerals, relatives after noun heads; question word initial; 1 prefix, 5 suffixes; word order distinguishes subjects, objects, indirect objects; affixes indicate case of noun phrases; verb affixes mark person, number, gender of subject; passives, causatives, comparatives."