U+1FFD "´" Greek Oxia Unicode Character

U+1FFD "´" Greek Oxia is a mark used in ancient and polytonic Greek writing, originally functioning as an acute accent to indicate a high pitch or stress on a vowel. It is historically distinct from the tonos, the modern Greek stress mark, though in many digital fonts and contexts they appear identical, and the oxia is now often unified with the tonos for practical rendering. This character primarily appears in scholarly and liturgical texts that preserve classical Greek pronunciation and diacritic conventions.