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 today. It was borrowed from Latin "barbari". The Latin word is also found in the Arabic designation for these populations, البربر ("al-Barbar"); see Names of the Berber people. Etymologically, the Berber root "M-Z-Ɣ" ("Mazigh") (singular noun: "Amazigh", feminine: "Tamazight") means "free man", "noble man", or "defender". The feminine "Tamazight" traditionally referred specifically to the Riffian and Central Atlas Tamazight languages. Many Berber linguists prefer to consider the term "Tamazight" as a pure Berber word to be used only in Berber text while using the European word "Berber/"Berbero"/"Berbère"" in European texts to follow the traditions of European writings about the Berbers.