U+1FAF "ᾯ" Greek Capital Letter Omega with Dasia and Perispomeni and Prosgegrammeni Unicode Character

U+1FAF "ᾯ" Greek Capital Letter Omega with Dasia and Perispomeni and Prosgegrammeni is a complex polytonic Greek character used in ancient and liturgical Greek orthography, representing a capital omega (Ω) combined with three diacritical marks: the dasia (rough breathing, indicating an initial /h/ sound), the perispomeni (a circumflex accent marking a specific intonation pattern), and a small iota subscript known as prosgegrammeni (a subscript iota that is part of a long diphthong, historically written alongside the vowel). This character is extremely rare in modern usage, found only in specialized classical, historical, or theological texts where precise representation of ancient Greek pronunciation and accentuation is required, and it appears in the Unicode standard under the category of "Greek and Coptic" to preserve the full typographic fidelity of pre-modern Greek writing systems.