U+A855 "ꡕ" Phags-Pa Letter Za Unicode Character

U+A855 "ꡕ" Phags-Pa Letter Za is a glyph representing a consonant sound in the Phags-pa script, a historical alphabet devised in the 13th century by the Tibetan monk Drogön Chögyal Phagpa for the Mongolian Yuan dynasty to uniformly write multiple languages, including Mongolian, Chinese, and Tibetan. This specific letter corresponds to the voiced alveolar affricate /dz/ or a similar sound, functioning as one of the script's thirty-eight primary characters used to transcribe syllables. Although now largely obsolete outside of scholarly and historical contexts, the Phags-pa script, including the letter Za, remains significant for studying medieval East Asian linguistics and the administrative writing systems of the Mongol Empire.