U+A669 "ꙩ" Cyrillic Small Letter Monocular O Unicode Character

U+A669 "ꙩ" Cyrillic Small Letter Monocular O is a historical glyph used in early Cyrillic manuscripts, distinguished by a single dot or "eye" inside the bowl of the letter, in contrast to the more common binocular O which has two dots. This variant was employed primarily in medieval Slavic texts, often to denote a specific phonetic nuance or stylistic convention in the writing of Old Church Slavonic and related languages. It belongs to the Cyrillic Extended-B block and remains an important symbol for paleographers and linguists studying the evolution of Cyrillic script, though it is largely obsolete in modern usage.