U+1FD1 "ῑ" Greek Small Letter Iota with Macron Unicode Character
Unicode Version 17.0
ῑ
U+1FD1 "ῑ" Greek Small Letter Iota with Macron is a precomposed letter representing the Greek iota (ι) combined with a macron, a horizontal line placed above the character to indicate a long vowel sound. This character is used in polytonic Greek orthography, often in classical or scholarly texts, to denote a specific phonemic length in transliteration or teaching contexts, distinguishing it from the short iota. It appears in Unicode’s Greek Extended block and is distinct from a regular iota followed by a combining macron, though it may be displayed similarly in some fonts. Its inclusion aids in precise representation of ancient Greek pronunciation and textual accuracy in digital formats.
General Properties
| Code Point | U+1FD1 |
| Version Added | 1.1 |
| Name | Greek Small Letter Iota with Macron |
| Block | Greek Extended |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "ι" U+03B9 Greek Small Letter Iota "̄" U+0304 Combining Macron |
Encodings
| HTML Decimal Encoding | ῑ |
| HTML Hex Encoding | ῑ |
| UTF-8 Encoding | 0xE1 0xBF 0x91 |
| UTF-16 Encoding | 0x1FD1 |
| UTF-32 Encoding | 0x00001FD1 |
| C/C++/Java Escape | \u1fd1 |
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 | "Ῑ" U+1FD9 Greek Capital Letter Iota with Macron |
| Simple Titlecase Code Point | "Ῑ" U+1FD9 Greek Capital Letter Iota with Macron |
| Uppercase Code Point | "Ῑ" U+1FD9 Greek Capital Letter Iota with Macron |
| Titlecase Code Point | "Ῑ" U+1FD9 Greek Capital Letter Iota with Macron |
| 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 |