Xi (letter) be encoded using the normal Greek letters, with markup and formatting to indicate text style. Uppercase Ξ is used as an 'E' to stylize company names/logos like Razer (styled as RΛZΞR) and musician Banners (styled as BANNΞRS). Xi (letter) Xi (uppercase Ξ, lowercase ξ; ) is the 14th letter of the Greek alphabet. It is pronounced in Modern Greek, and generally or in English. In the system of Greek numerals, it has a value of 60. Xi was derived from the Phoenician letter samekh . Xi is not to be confused with the letter chi, which gave its form to
History of the Greek alphabet Greek. Since the names of the letters "’āleph" and "hē" were pronounced and by the Greeks, with initial vowels due to the silent gutturals (the disambiguation "e psilon" "narrow e" came later), the acrophonic principle was retained for vowels as well as consonants by using them for the Greek vowel sounds and . Only the letter "‘ayin" for necessitated a change of name ("o", later "o micron"). Phoenician also had an "emphatic" consonant, "ṭēth", which did not exist in Greek. However, Greek had an aspiration distinction that Phoenician lacked, and used ṭēth for the aspirated . The Phoenician consonants "kaph"