U+A777 "ꝷ" Latin Small Letter Tum Unicode Character

U+A777 "ꝷ" Latin Small Letter Tum is a rare medieval Latin letter used primarily in Old English and early Scottish orthography to represent a specific phonetic sound, likely derived from the combination of a "t" and a "u" or from the abbreviation of the word "tum" in scribal shorthand. It belongs to the Latin Extended-D block and was added to Unicode to support the accurate digital representation of historical manuscripts and philological texts. Its usage is specialized, appearing mainly in scholarly editions of ancient documents where it serves as a distinct grapheme rather than a simple ligature.