U+017F "ſ" Latin Small Letter Long S Unicode Character
Unicode Version 17.0
ſ
U+017F "ſ" Latin Small Letter Long S is a historical typographic form of the lowercase letter s, which was commonly used in Western printing from the medieval period through the early 19th century. Unlike the modern round or short s (s), the long s resembles a lowercase f but without a full crossbar, and it was typically used at the beginning or within a word, while the short s was reserved for final positions. Its decline in English and other languages came with shifting printing conventions, and today it is primarily studied in historical texts, paleography, and digital typography, where its inclusion in Unicode allows for accurate representation of older documents.
General Properties
| Code Point | U+017F |
| Version Added | 1.1 |
| Name | Latin Small Letter Long S |
| Block | Latin Extended-A |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Compat |
| Decomposition Mapping | "s" U+0073 Latin Small Letter S |
Encodings
| HTML Decimal Encoding | ſ |
| HTML Hex Encoding | ſ |
| UTF-8 Encoding | 0xC5 0xBF |
| UTF-16 Encoding | 0x017F |
| UTF-32 Encoding | 0x0000017F |
| C/C++/Java Escape | \u017f |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Lowercase | Yes |
| Simple Uppercase Code Point | "S" U+0053 Latin Capital Letter S |
| Simple Titlecase Code Point | "S" U+0053 Latin Capital Letter S |
| Uppercase Code Point | "S" U+0053 Latin Capital Letter S |
| Titlecase Code Point | "S" U+0053 Latin Capital Letter S |
| Simple Case Folding | "s" U+0073 Latin Small Letter S |
| Case Folding | "s" U+0073 Latin Small Letter S |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When NFKC Casefolded | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| NFKC Casefold | "s" U+0073 Latin Small Letter S |
| NFKC Simple Casefold | "s" U+0073 Latin Small Letter 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 | Lower |