U+11A55 "𑩕" Soyombo Vowel Sign O Unicode Character

U+11A55 "𑩕" Soyombo Vowel Sign O is a diacritical mark used in the Soyombo script, an abugida historically employed for writing Mongolian, Tibetan, and Sanskrit texts within Buddhist contexts. This specific vowel sign is placed above a consonant character to modify its inherent vowel sound to a pure "O" sound, functioning as a dependent vowel marker rather than an independent letter. The Soyombo script is most notably associated with the Soyombo symbol, a national emblem of Mongolia, and the script itself was created in the 17th century by the Mongolian Buddhist scholar and monk Zanabazar.