U+04F9 "ӹ" Cyrillic Small Letter Yeru with Diaeresis Unicode Character
U+04F9 "ӹ" Cyrillic Small Letter Yeru with Diaeresis is a variant of the Cyrillic letter Yeru, which itself represents a combination of the hard sign and the soft sign, and the addition of the diaeresis (two dots) above it typically indicates a specific palatalized or modified pronunciation in certain languages. This character is primarily used in the Cyrillic orthography of the Mari and Udmurt languages, where it denotes a sound that is a high central unrounded vowel, often transcribed as [ɨ] or [ə], and it helps to distinguish words in written texts. As a lowercase letter, it corresponds to the uppercase form U+04F8 "Ӹ" and is part of the extended Cyrillic block in the Unicode standard, enabling digital representation of these minority languages.
General Properties
| Code Point | U+04F9 |
| Version Added | 1.1 |
| Name | Cyrillic Small Letter Yeru with Diaeresis |
| Block | Cyrillic |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "ы" U+044B Cyrillic Small Letter Yeru "̈" U+0308 Combining Diaeresis |
Encodings
| HTML Decimal Encoding | ӹ |
| HTML Hex Encoding | ӹ |
| UTF-8 Encoding | 0xD3 0xB9 |
| UTF-16 Encoding | 0x04F9 |
| UTF-32 Encoding | 0x000004F9 |
| C/C++/Java Escape | \u04f9 |
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 | "Ӹ" U+04F8 Cyrillic Capital Letter Yeru with Diaeresis |
| Simple Titlecase Code Point | "Ӹ" U+04F8 Cyrillic Capital Letter Yeru with Diaeresis |
| Uppercase Code Point | "Ӹ" U+04F8 Cyrillic Capital Letter Yeru with Diaeresis |
| Titlecase Code Point | "Ӹ" U+04F8 Cyrillic Capital Letter Yeru with Diaeresis |
| Cased | Yes |
| Changes When Casemapped | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| Script | Cyrillic |
| Script Extensions | Cyrillic |
| 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 |