Alphabets of Asia Minor but contain Greek innovations such as the letters Φ and Ψ which did not exist in the earliest forms of the Greek alphabet. The Anatolian alphabets fell out of use around the 4th century BCE with the onset of the Hellenistic period. Alphabets of Asia Minor Various alphabetic writing systems were in use in Iron Age Anatolia to record Anatolian languages and Phrygian. Several of these languages had previously been written with logographic and syllabic scripts. The alphabets of Asia Minor proper share characteristics that distinguish them from the earliest attested forms of the Greek alphabet. Many letters in these
Ancient Greek phonology velars . Which one they became depended on dialect and phonological environment. Because of this, certain words that originally had labialized velars have different stops depending on dialect, and certain words from the same root have different stops even in the same Ancient Greek dialect. Near or , the labialized velars had already lost their labialization in the Mycenaean period. Through "psilosis" ('stripping'), from the term for lack of (see below), the was lost even at the beginnings of words. This sound change did not occur in Attic until the Koine period, but occurred in East Ionic and Lesbian Aeolic,