U+1F91 "ᾑ" Greek Small Letter Eta with Dasia and Ypogegrammeni Unicode Character
Unicode Version 17.0
ᾑ
U+1F91 "ᾑ" Greek Small Letter Eta with Dasia and Ypogegrammeni is a polytonic Greek letter representing the vowel eta (η) combined with a rough breathing mark (dasia) indicating an initial /h/ sound and an iota subscript (ypogegrammeni) written below the letter, which in ancient Greek transcription denotes a long diphthong with a silent iota that influences pronunciation and was traditionally used in textual accents. This character, belonging to the Greek Extended block, is primarily employed in classical and liturgical Greek texts to preserve historical orthography and phonetic distinctions, though it is rarely seen in modern Greek writing, which has simplified to monotonic accentuation.
General Properties
| Code Point | U+1F91 |
| Version Added | 1.1 |
| Name | Greek Small Letter Eta with Dasia and Ypogegrammeni |
| Block | Greek Extended |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "ἡ" U+1F21 Greek Small Letter Eta with Dasia "ͅ" U+0345 Combining Greek Ypogegrammeni |
Encodings
| HTML Decimal Encoding | ᾑ |
| HTML Hex Encoding | ᾑ |
| UTF-8 Encoding | 0xE1 0xBE 0x91 |
| UTF-16 Encoding | 0x1F91 |
| UTF-32 Encoding | 0x00001F91 |
| C/C++/Java Escape | \u1f91 |