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
Alphabet of the Magi the prophets used this letter and that they were forbidden to divulge it to mortal man." Thet alphabet is described in the pseudo-Paracelsian "Archidoxis magica", translated into English by R. Turner (1656). S.L. MacGregor Mathers included it in his 1888 edition of the "Key of Solomon" (plate XV) under the name "Alphabet of the Magi." Alphabet of the Magi Alphabet of the Magi is the modern name of a variant of the Hebrew alphabet used for inscriptions in talismans in 17th-century occultism. It is based on a variant of the Semitic alphabet given by Theseus Ambrosius (1469–1540) in his "Introductio