U+1F3D "Ἵ" Greek Capital Letter Iota with Dasia and Oxia Unicode Character
U+1F3D "Ἵ" Greek Capital Letter Iota with Dasia and Oxia is a precomposed character from the Greek extended block, combining an uppercase iota with two ancient Greek diacritical marks: the dasia (a rough breathing mark indicating an initial /h/ sound) and the oxia (an acute accent denoting pitch or stress). This character is primarily used in polytonic Greek orthography, which historically marked pronunciation features in classical and liturgical texts. Its code point U+1F3D places it within the range of precomposed forms that were once more common in older encoding systems, though modern Unicode allows for the separate encoding of the letter and its combining marks. The character thus represents a specific encoding solution for a typographically complex combination found in scholarly and religious Greek writing.
General Properties
| Code Point | U+1F3D |
| Version Added | 1.1 |
| Name | Greek Capital Letter Iota with Dasia and Oxia |
| Block | Greek Extended |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Ἱ" U+1F39 Greek Capital Letter Iota with Dasia "́" U+0301 Combining Acute Accent |
Encodings
| HTML Decimal Encoding | Ἵ |
| HTML Hex Encoding | Ἵ |
| UTF-8 Encoding | 0xE1 0xBC 0xBD |
| UTF-16 Encoding | 0x1F3D |
| UTF-32 Encoding | 0x00001F3D |
| C/C++/Java Escape | \u1f3d |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ἵ" U+1F35 Greek Small Letter Iota with Dasia and Oxia |
| Lowercase Code Point | "ἵ" U+1F35 Greek Small Letter Iota with Dasia and Oxia |
| Simple Case Folding | "ἵ" U+1F35 Greek Small Letter Iota with Dasia and Oxia |
| Case Folding | "ἵ" U+1F35 Greek Small Letter Iota with Dasia and Oxia |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ἵ" U+1F35 Greek Small Letter Iota with Dasia and Oxia |
| NFKC Simple Casefold | "ἵ" U+1F35 Greek Small Letter Iota with Dasia and Oxia |
| 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 |