U+1F6F "Ὧ" Greek Capital Letter Omega with Dasia and Perispomeni Unicode Character

U+1F6F "Ὧ" Greek Capital Letter Omega with Dasia and Perispomeni is a precomposed polytonic Greek letter used in ancient and liturgical Greek to represent the long omega vowel (ō) with both a rough breathing mark (dasia, indicating an /h/ sound) and a circumflex accent (perispomeni, indicating a rising and falling pitch contour over a long vowel). This character is part of the Greek Extended block in Unicode, designed to support the complex diacritic systems of classical and Byzantine Greek texts. It was encoded in Unicode version 1.1 in 1993 and is visually distinct from its lowercase counterpart, which is used in more common rendering of polytonic text.