Tocho (Tacho) is a Niger–Congo language in the Talodi family spoken in Kordofan, Sudan.

It is spoken by approximately 2,700 people in the following villages: Igije, Imanjela, Thodero, Thoge, Tobaredeng, Tocho Goos, Tocho Saraf Jamus, Toderum, Togero, Togiding, Toriya, Torobang, Tothokrek and Turu.

Compared to older data (Schadeberg 1981[3]), the flap [ɽ] is mostly merging with the trill [r, rr], but one can also argue that the newer data (Alaki & Norton 2013:178-180[2]) was collected in Khartoum, where Sudanese Arabic (which does not contain a flap (ɽ), but has a trill [r]) is the official language.

So the merging can not be confirmed yet and has to be verificated with data in the villages where Tocho is spoken.

Those prefix-pairs consist of mostly all consonant phonemes and the option of none prefix (marked as ø).