U+1FEB "Ύ" Greek Capital Letter Upsilon with Oxia Unicode Character
Unicode Version 17.0
Ύ
U+1FEB "Ύ" Greek Capital Letter Upsilon with Oxia is a precomposed character used in polytonic Greek orthography, representing an uppercase upsilon (Υ) combined with an oxia, or acute accent, which historically denoted a high pitch in ancient Greek. This character is distinct from the standard uppercase upsilon with a tonos (Ύ, U+03CE) used in modern monotonic Greek, and its primary use today is in scholarly texts, classical literature editions, and liturgical works that require the preservation of ancient Greek accentuation. It belongs to the Greek Extended block of Unicode and is encoded as a single code point for compatibility with legacy systems and for precise rendering in digital typography.
General Properties
| Code Point | U+1FEB |
| Version Added | 1.1 |
| Name | Greek Capital Letter Upsilon with Oxia |
| Block | Greek Extended |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Ύ" U+038E Greek Capital Letter Upsilon with Tonos |
Encodings
| HTML Decimal Encoding | Ύ |
| HTML Hex Encoding | Ύ |
| UTF-8 Encoding | 0xE1 0xBF 0xAB |
| UTF-16 Encoding | 0x1FEB |
| UTF-32 Encoding | 0x00001FEB |
| C/C++/Java Escape | \u1feb |
Unicode Properties
| Full Composition Exclusion | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ύ" U+1F7B Greek Small Letter Upsilon with Oxia |
| Lowercase Code Point | "ύ" U+1F7B Greek Small Letter Upsilon with Oxia |
| Simple Case Folding | "ύ" U+1F7B Greek Small Letter Upsilon with Oxia |
| Case Folding | "ύ" U+1F7B Greek Small Letter Upsilon with Oxia |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ύ" U+03CD Greek Small Letter Upsilon with Tonos |
| NFKC Simple Casefold | "ύ" U+03CD Greek Small Letter Upsilon with Tonos |
| Script | Greek |
| Script Extensions | Greek |
| 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 |