U+1E05A "π" Cyrillic Subscript Small Letter Ka Unicode Character
U+1E05A "π" Cyrillic Subscript Small Letter Ka is a specialized typographic glyph designed for use in historical or linguistic texts, where it appears as a subscript form of the Cyrillic letter Ka, positioned below the baseline to serve as a diacritic or phonetic modifier. This character is part of the Cyrillic Extended D block, which was introduced in Unicode version 14.0 to support scholarly transcription and precise notation of Old Church Slavonic or other early Slavic manuscripts. Its inclusion ensures that researchers can accurately represent subscripted consonants and other fine-grained orthographic details without relying on ad hoc formatting or private use characters, thereby preserving the integrity of the original written sources.