Berber languages suggests that the C-Group population — which, along with the Kerma culture, inhabited the Nile valley immediately before the arrival of the first Nubian speakers — spoke Afro-Asiatic languages. Roger Blench (2018) suggests that Proto-Berber speakers had spread from the Nile River valley to North Africa 4,000-5,000 years ago due to the spread of pastoralism, and experienced intense language leveling about 2,000 years ago as the Roman Empire was expanding in North Africa. Hence, although Berber had split off from Afroasiatic several thousand years ago, Proto-Berber itself can only be reconstructed to a period as late as 200 A.D. Blench
Berber languages European languages distinguish between the words "Berber" and "barbarian", while Arabic has the same word "al-Barbari" for both meanings. Some other Berber writers, especially in Morocco, prefer to refer to Berber with "Amazigh" when writing about it in French or English. Traditionally, the term "Tamazight" (in various forms: "Thamazighth", "Tamasheq", "Tamajaq", "Tamahaq") was used by many Berber groups to refer to the language they spoke, including the Middle Atlas, the Riffians, the Sened in Tunisia and the Tuareg. However, other terms were used by other groups; for instance, some Berber populations of Algeria called their language "Taznatit" (Zenati) or "Shelha",