U+1EFE "Ỿ" Latin Capital Letter Y with Loop Unicode Character
Unicode Version 17.0
Ỿ
U+1EFE "Ỿ" Latin Capital Letter Y with Loop is a rarely used glyph in the Latin script, primarily associated with historical or specialized orthographies, most notably the medieval transcription of Old Polish where it represented a nasalized vowel sound similar to modern "ę." Its distinctive feature is a closed loop or hook attached to the descender of the capital letter Y, which distinguishes it typographically from the standard Y. This character is part of the Latin Extended Additional block and was encoded in Unicode to support scholarly and linguistic documentation of early written forms, though it is not commonly found in modern standard alphabets.
General Properties
| Code Point | U+1EFE |
| Version Added | 5.1 |
| Name | Latin Capital Letter Y with Loop |
| Block | Latin Extended Additional |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | Ỿ |
| HTML Hex Encoding | Ỿ |
| UTF-8 Encoding | 0xE1 0xBB 0xBE |
| UTF-16 Encoding | 0x1EFE |
| UTF-32 Encoding | 0x00001EFE |
| C/C++/Java Escape | \u1efe |
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 | "ỿ" U+1EFF Latin Small Letter Y with Loop |
| Lowercase Code Point | "ỿ" U+1EFF Latin Small Letter Y with Loop |
| Simple Case Folding | "ỿ" U+1EFF Latin Small Letter Y with Loop |
| Case Folding | "ỿ" U+1EFF Latin Small Letter Y with Loop |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ỿ" U+1EFF Latin Small Letter Y with Loop |
| NFKC Simple Casefold | "ỿ" U+1EFF Latin Small Letter Y with Loop |
| 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 |