U+2DFE "ⷾ" Combining Cyrillic Letter Big Yus Unicode Character

U+2DFE "ⷾ" Combining Cyrillic Letter Big Yus is a diacritical mark used in historical and liturgical Cyrillic texts, designed to be placed above or below a base character to modify its phonetic value. This combining form represents the Big Yus (Ѫ ѫ), a vowel originally denoting a nasalized back vowel in Old Church Slavonic and early Slavic languages. Unlike the standalone Big Yus letter, this grapheme combines with other characters to indicate specific nasalization or palatalization in scholarly or religious manuscripts. Its inclusion in Unicode enables accurate digital representation of ancient Slavic script variants, particularly for philologists and historians studying medieval Cyrillic orthography. Today, it remains primarily relevant in academic and paleographic contexts rather than in modern language usage.