Xi (letter) dialects of most of the Greek mainland and Euboea, the sound [ks] was represented by Χ (which in classical Greek is chi, used for ). Because this variant of the Greek alphabet was used in Italy, the Latin alphabet borrowed Χ rather than Ξ as the Latin letter X. While having no Latin derivative, the Xi was adopted into the early Cyrillic alphabet, as the letter ksi (Ѯ, ѯ). The uppercase letter Ξ is used as symbol for: The lowercase letter ξ is used as a symbol for: These characters are used only as mathematical symbols. Stylized Greek text should
History of the Arabic alphabet History of the Arabic alphabet The history of the Arabic alphabet concerns the origins and the evolution of the Arabic script. It is thought that the Arabic alphabet is a derivative of the Nabataean variation of the Aramaic alphabet, which descended from the Phoenician alphabet, which, among others, gave rise to the Hebrew alphabet and the Greek alphabet (and therefore the Cyrillic and Roman alphabets). The Arabic alphabet evolved either from the Nabataean, or (less widely believed) directly from the Syriac. This table shows changes undergone by the shapes of the letters from the Aramaic original to the Nabataean and