U+1F8D "ᾍ" Greek Capital Letter Alpha with Dasia and Oxia and Prosgegrammeni Unicode Character

U+1F8D "ᾍ" Greek Capital Letter Alpha with Dasia and Oxia and Prosgegrammeni is a precomposed character used in polytonic Greek orthography, combining an uppercase alpha with a rough breathing mark (dasia) indicated by a left-facing comma above the letter, an acute accent (oxia) placed over the breathing mark, and a small iota subscript (prosgegrammeni) written beneath the capital letter. This character is primarily employed in the study of ancient Greek texts to denote a long vowel sound with both aspiration and stress at the start of a word, typically appearing in manuscripts where the iota is a mute subscript that historically represented a lost vowel. It is encoded in the Unicode Greek Extended block and is not commonly used in modern Greek, but remains essential for accurate representation of classical literature and linguistic analysis.