U+1FAD "ᾭ" Greek Capital Letter Omega with Dasia and Oxia and Prosgegrammeni Unicode Character

U+1FAD "ᾭ" Greek Capital Letter Omega with Dasia and Oxia and Prosgegrammeni is a rarely used polytonic Greek letter representing the long omega vowel combined with three diacritical marks: the dasia, indicating a rough breathing (aspiration), the oxia, signifying an acute accent, and a small iota subscript, which is the prosgegrammeni written beneath the omega. This character appears in ancient and liturgical Greek texts, where it denotes a specific diphthong sound or grammatical form, typically at the beginning of a word to reflect both the initial aspiration and pitch accent. As a specialized glyph, it is part of the Unicode block for Greek and Coptic, designed to preserve the precise orthography of ancient manuscripts.