U+1BC9D "𛲝" Duployan Thick Letter Selector Unicode Character

U+1BC9D "𛲝" Duployan Thick Letter Selector is a formatting character used within the Duployan shorthand script block, designed to modify the appearance of the preceding letter by indicating that it should be rendered with a thicker or bolder stroke. It is part of the system of combining marks and selectors in Duployan shorthand, which was developed in the 19th century for rapid writing in French, English, and other languages. This character does not represent a sound on its own but instead acts as a typographic control, allowing writers to emphasize certain letters within the flowing, cursive style of Duployan script. It is classified under category Mn, meaning it is a nonspacing mark that combines with the base character it follows.