U+1BC21 "𛰡" Duployan Letter M with Dot Unicode Character

U+1BC21 "𛰡" Duployan Letter M with Dot is a glyph used in the Duployan shorthand script, which was developed in the 19th century for writing French, English, and other languages with speed and efficiency. This specific character represents the consonant sound "M" with an associated dot modifier, likely indicating a variant pronunciation, a vowel diacritic, or a distinct syllabic value within the shorthand system. The Duployan block in Unicode was added in version 7.0 to support historical and liturgical texts, preserving the nuanced orthography of this once popular stenography method.