U+1FF9 "Ό" Greek Capital Letter Omicron with Oxia Unicode Character
Unicode Version 17.0
Ό
U+1FF9 "Ό" Greek Capital Letter Omicron with Oxia is a precomposed variant used in polytonic Greek orthography to represent the uppercase omicron letter carrying a high pitch or acute accent, historically known as an oxia. This character is distinct from the more common combined form with a tonos and is primarily employed in scholarly texts, liturgical writings, and historical reproductions of ancient or Byzantine Greek. While modern Greek typically uses a simple monotonic system, this polytonic character helps preserve the tonal distinctions found in older manuscripts and classical literature. Its inclusion in Unicode ensures accurate digital representation and rendering of such specialized typographic needs.
General Properties
| Code Point | U+1FF9 |
| Version Added | 1.1 |
| Name | Greek Capital Letter Omicron with Oxia |
| Block | Greek Extended |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Ό" U+038C Greek Capital Letter Omicron with Tonos |
Encodings
| HTML Decimal Encoding | Ό |
| HTML Hex Encoding | Ό |
| UTF-8 Encoding | 0xE1 0xBF 0xB9 |
| UTF-16 Encoding | 0x1FF9 |
| UTF-32 Encoding | 0x00001FF9 |
| C/C++/Java Escape | \u1ff9 |
Unicode Properties
| Full Composition Exclusion | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ό" U+1F79 Greek Small Letter Omicron with Oxia |
| Lowercase Code Point | "ό" U+1F79 Greek Small Letter Omicron with Oxia |
| Simple Case Folding | "ό" U+1F79 Greek Small Letter Omicron with Oxia |
| Case Folding | "ό" U+1F79 Greek Small Letter Omicron with Oxia |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ό" U+03CC Greek Small Letter Omicron with Tonos |
| NFKC Simple Casefold | "ό" U+03CC Greek Small Letter Omicron 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 |