Greco-Iberian alphabet lateral, and only one nasal sign. To represent the second rhotic rho gets an additional stroke. Eta is used instead of epsilon to represent /e/. The only letter not found in the modern variant of the Greek alphabet is sampi. The letter forms are petroglyphic since the writing surface (ceramic, stone, lead) affords angular glyphs with straight lines. Greco-Iberian alphabet The Greco-Iberian alphabet is a direct adaptation of an Ionic variant of a Greek alphabet to the specifics of the Iberian language, thus this script is an alphabet and lacks the distinctive characteristic of the rest of paleohispanic scripts that
Greek alphabet 900. This system has remained in use in Greek up to the present day, although today it is only employed for limited purposes such as enumerating chapters in a book, similar to the way Roman numerals are used in English. The three extra symbols are today written as , and respectively. To mark a letter as a numeral sign, a small stroke called "keraia" is added to the right of it. In North America, many college fraternities and sororities are named with combinations of Greek letters, and are hence also known as "Greek letter organizations". This naming tradition was initiated