Berber calendar December - 13 January), and 20 "black nights" (Berber: "iḍan tiberkanin/isṭṭafen", Arabic "al-lyali al-sud"), beginning on the first day of "yennayer", corresponding to the Gregorian 14 January. The first day of the year is celebrated in various ways in the different parts of North Africa. A widespread tradition is a meal with particular foods, which vary from region to region (such as a couscous with seven vegetables). In some regions, it is marked by the sacrifice of an animal (usually a chicken). In Algeria, such a holiday is celebrated even by many people who don't use the Berber calendar in
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.