U+A646 "Ꙇ" Cyrillic Capital Letter Iota Unicode Character
Unicode Version 17.0
Ꙇ
U+A646 "Ꙇ" Cyrillic Capital Letter Iota is a glagolitic-derived letter found in the historic Cyrillic alphabet used primarily in early Church Slavonic manuscripts, where it represents the vowel sound /i/ and serves as a variant or predecessor of the modern Cyrillic letter И. This character belongs to the Cyrillic Extended-B block and is rarely used in contemporary writing, appearing mainly in scholarly contexts for the precise reconstruction and study of medieval Slavic texts. Its uppercase form is distinguished by a shape resembling a Greek iota with a curved or angular baseline, reflecting its origin from the earlier Glagolitic script before the standard Cyrillic letterforms were fully solidified.
General Properties
| Code Point | U+A646 |
| Version Added | 5.1 |
| Name | Cyrillic Capital Letter Iota |
| Block | Cyrillic Extended-B |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | Ꙇ |
| HTML Hex Encoding | Ꙇ |
| UTF-8 Encoding | 0xEA 0x99 0x86 |
| UTF-16 Encoding | 0xA646 |
| UTF-32 Encoding | 0x0000A646 |
| C/C++/Java Escape | \ua646 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ꙇ" U+A647 Cyrillic Small Letter Iota |
| Lowercase Code Point | "ꙇ" U+A647 Cyrillic Small Letter Iota |
| Simple Case Folding | "ꙇ" U+A647 Cyrillic Small Letter Iota |
| Case Folding | "ꙇ" U+A647 Cyrillic Small Letter Iota |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ꙇ" U+A647 Cyrillic Small Letter Iota |
| NFKC Simple Casefold | "ꙇ" U+A647 Cyrillic Small Letter Iota |
| Script | Cyrillic |
| Script Extensions | Cyrillic |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Upper |