Proto-Berber language reached the stage where these different branches of this language family evolved. From that perspective, Proto-Berber was the first Berber stage to depart from Proto-Afrosiatic in the eighth millennium. It was restructured several times during the almost 10,000 years that separated it from its modern shape, which has preserved few relics. Roger Blench (2018) suggests that Proto-Berber speakers 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
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.