U+A7D8 "Ꟙ" Latin Capital Letter Sigmoid S Unicode Character
Unicode Version 17.0
Ꟙ
U+A7D8 "Ꟙ" Latin Capital Letter Sigmoid S is a relatively recent addition to the standard, encoded in 2022 as part of the Latin Extended-D block to support historical and phonetic transcription needs. This character represents a distinct capital form of the sigmoid s, a variant of the Latin letter S that was used in certain medieval and early modern manuscripts, particularly in contexts where a special graphical shape was required to denote specific sounds or orthographic conventions. Its inclusion allows scholars and typographers to accurately represent and digitize these historical texts, distinguishing it from the standard Latin S and other similar characters like the long s.
General Properties
| Code Point | U+A7D8 |
| Version Added | 14.0 |
| Name | Latin Capital Letter Sigmoid S |
| Block | Latin Extended-D |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | Ꟙ |
| HTML Hex Encoding | Ꟙ |
| UTF-8 Encoding | 0xEA 0x9F 0x98 |
| UTF-16 Encoding | 0xA7D8 |
| UTF-32 Encoding | 0x0000A7D8 |
| C/C++/Java Escape | \ua7d8 |
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 | "ꟙ" U+A7D9 Latin Small Letter Sigmoid S |
| Lowercase Code Point | "ꟙ" U+A7D9 Latin Small Letter Sigmoid S |
| Simple Case Folding | "ꟙ" U+A7D9 Latin Small Letter Sigmoid S |
| Case Folding | "ꟙ" U+A7D9 Latin Small Letter Sigmoid S |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ꟙ" U+A7D9 Latin Small Letter Sigmoid S |
| NFKC Simple Casefold | "ꟙ" U+A7D9 Latin Small Letter Sigmoid S |
| Script | Latin |
| Script Extensions | Latin |
| 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 |