U+A643 "ꙃ" Cyrillic Small Letter Dzelo Unicode Character

U+A643 "ꙃ" Cyrillic Small Letter Dzelo is a historic letter from the early Cyrillic alphabet, used primarily in Old Church Slavonic manuscripts to represent the sound /dz/. This character is the lowercase form of the uppercase U+A642 "Ꙃ", and it belongs to the Cyrillic Extended-B block, having been added to the Unicode standard as part of version 5.1 in 2008. Unlike the modern Cyrillic letter з (ze), which typically denotes a /z/ sound, Dzelo historically functioned as a distinct phoneme or allophone, though it gradually fell out of use in most Slavic languages and was replaced by other letters or digraphs.