U+1F3F "Ἷ" Greek Capital Letter Iota with Dasia and Perispomeni Unicode Character
U+1F3F "Ἷ" Greek Capital Letter Iota with Dasia and Perispomeni is a precomposed historical Greek letter used primarily in ancient polytonic Greek orthography, combining the capital letter iota with a dasia (rough breathing mark) indicating an initial /h/ sound and a perispomeni (circumflex accent) denoting a specific pitch contour. This character is part of the Greek Extended block and is rarely employed in modern Greek, but it appears in scholarly editions of ancient texts to preserve the nuanced pronunciation and accentuation of words like the interjection "ἵ" (with rough breathing and circumflex). Its usage underscores the complexity of classical Greek writing, where diacritics conveyed both phonetic and tonal information essential for accurate recitation and interpretation.
General Properties
| Code Point | U+1F3F |
| Version Added | 1.1 |
| Name | Greek Capital Letter Iota with Dasia and Perispomeni |
| 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+0342 Combining Greek Perispomeni |
Encodings
| HTML Decimal Encoding | Ἷ |
| HTML Hex Encoding | Ἷ |
| UTF-8 Encoding | 0xE1 0xBC 0xBF |
| UTF-16 Encoding | 0x1F3F |
| UTF-32 Encoding | 0x00001F3F |
| C/C++/Java Escape | \u1f3f |
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 | "ἷ" U+1F37 Greek Small Letter Iota with Dasia and Perispomeni |
| Lowercase Code Point | "ἷ" U+1F37 Greek Small Letter Iota with Dasia and Perispomeni |
| Simple Case Folding | "ἷ" U+1F37 Greek Small Letter Iota with Dasia and Perispomeni |
| Case Folding | "ἷ" U+1F37 Greek Small Letter Iota with Dasia and Perispomeni |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ἷ" U+1F37 Greek Small Letter Iota with Dasia and Perispomeni |
| NFKC Simple Casefold | "ἷ" U+1F37 Greek Small Letter Iota with Dasia and Perispomeni |
| 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 |