U+A663 "ꙣ" Cyrillic Small Letter Soft De Unicode Character

U+A663 "ꙣ" Cyrillic Small Letter Soft De is a historical letter from the early Cyrillic alphabet, specifically a variant of the letter "De" (Д д) that incorporates a palatalization hook or tail, indicating a softened or palatalized pronunciation of the /d/ sound. This glyph was used in Old Church Slavonic and other early Slavic manuscripts to represent a soft or iotated dental stop, often before front vowels, and it belongs to the Cyrillic Extended-B block, which houses various archaic and rare characters. It is now considered obsolete in modern Cyrillic orthographies, surviving primarily in paleographic and linguistic contexts for the study of medieval Slavic texts.