U+FD18 "ﴘ" Arabic Ligature Seen with Yeh Final Form Unicode Character

U+FD18 "ﴘ" Arabic Ligature Seen with Yeh Final Form is a typographic ligature used in the Arabic script, combining the letters seen (س) and yeh (ي) into a single connected glyph specifically designed for the final position of a word. It belongs to the Arabic Presentation Forms-A block, which contains variants historically used for improved calligraphy and typesetting, particularly in older or formal texts like the Quran. This character serves a practical purpose by streamlining the visual representation of common letter combinations, though its usage has diminished with modern digital fonts that can form such ligatures automatically.