U+1F37 "ἷ" Greek Small Letter Iota with Dasia and Perispomeni Unicode Character
U+1F37 "ἷ" Greek Small Letter Iota with Dasia and Perispomeni is a historical Greek letter used in ancient polytonic orthography, where the dasia (rough breathing mark) indicates an initial aspiration pronounced like an "h" sound, and the perispomeni (circumflex accent) denotes a rising and falling pitch on the vowel. This specific iota appears primarily in pre-classical and classical Greek manuscripts alongside epsilon or eta to represent diphthongs or long vowels with aspiration, and it is rarely used in modern Greek, which employs a simplified monotonic system. The character is part of the Unicode Greek Extended block, supporting scholars and typographers in accurately preserving and typesetting ancient texts with their original accentuation and breathing marks.
General Properties
| Code Point | U+1F37 |
| Version Added | 1.1 |
| Name | Greek Small Letter Iota with Dasia and Perispomeni |
| Block | Greek Extended |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "ἱ" U+1F31 Greek Small Letter Iota with Dasia "͂" U+0342 Combining Greek Perispomeni |
Encodings
| HTML Decimal Encoding | ἷ |
| HTML Hex Encoding | ἷ |
| UTF-8 Encoding | 0xE1 0xBC 0xB7 |
| UTF-16 Encoding | 0x1F37 |
| UTF-32 Encoding | 0x00001F37 |
| C/C++/Java Escape | \u1f37 |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Lowercase | Yes |
| Simple Uppercase Code Point | "Ἷ" U+1F3F Greek Capital Letter Iota with Dasia and Perispomeni |
| Simple Titlecase Code Point | "Ἷ" U+1F3F Greek Capital Letter Iota with Dasia and Perispomeni |
| Uppercase Code Point | "Ἷ" U+1F3F Greek Capital Letter Iota with Dasia and Perispomeni |
| Titlecase Code Point | "Ἷ" U+1F3F Greek Capital Letter Iota with Dasia and Perispomeni |
| Cased | Yes |
| Changes When Casemapped | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| 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 | Lower |