U+1F09 "Ἁ" Greek Capital Letter Alpha with Dasia Unicode Character
Unicode Version 17.0
Ἁ
U+1F09 "Ἁ" Greek Capital Letter Alpha with Dasia is a Greek letter used primarily in polytonic orthography, where it represents an Ancient Greek vowel sound with rough breathing, known as dasia, indicating an initial /h/ sound before the alpha. This character is part of the Unicode block for Greek and Coptic and is encoded for use in scholarly texts, classical literature, and linguistic studies that require precise representation of ancient pronunciation. It appears in modern contexts only for specialized academic or liturgical purposes, such as in editions of Homer or the Greek New Testament, where the attached diacritical mark distinguishes it from the smooth‑breathing alpha.
General Properties
| Code Point | U+1F09 |
| Version Added | 1.1 |
| Name | Greek Capital Letter Alpha with Dasia |
| Block | Greek Extended |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Α" U+0391 Greek Capital Letter Alpha "̔" U+0314 Combining Reversed Comma Above |
Encodings
| HTML Decimal Encoding | Ἁ |
| HTML Hex Encoding | Ἁ |
| UTF-8 Encoding | 0xE1 0xBC 0x89 |
| UTF-16 Encoding | 0x1F09 |
| UTF-32 Encoding | 0x00001F09 |
| C/C++/Java Escape | \u1f09 |
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 | "ἁ" U+1F01 Greek Small Letter Alpha with Dasia |
| Lowercase Code Point | "ἁ" U+1F01 Greek Small Letter Alpha with Dasia |
| Simple Case Folding | "ἁ" U+1F01 Greek Small Letter Alpha with Dasia |
| Case Folding | "ἁ" U+1F01 Greek Small Letter Alpha with Dasia |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ἁ" U+1F01 Greek Small Letter Alpha with Dasia |
| NFKC Simple Casefold | "ἁ" U+1F01 Greek Small Letter Alpha with Dasia |
| 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 |