U+1A66 "ᩦ" Tai Tham Vowel Sign Ii Unicode Character
Unicode Version 17.0
ᩦ
U+1A66 "ᩦ" Tai Tham Vowel Sign Ii is a combining diacritical mark used in the Tai Tham script, which historically writes the Northern Thai (Lanna), Tai Lü, and Khün languages. This specific vowel sign indicates a long "ii" sound, and it is written above the consonant it modifies. As part of the Tai Tham block in Unicode, it supports the accurate digital representation of classical and modern texts in these languages, preserving their unique orthographic traditions. Its codepoint allows for consistent encoding across digital platforms, enabling users to type, display, and search for these scripts without reliance on custom fonts.
General Properties
| Code Point | U+1A66 |
| Version Added | 5.2 |
| Name | Tai Tham Vowel Sign Ii |
| Block | Tai Tham |
| General Category | Nonspacing Mark |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Nonspacing Mark |
Encodings
| HTML Decimal Encoding | ᩦ |
| HTML Hex Encoding | ᩦ |
| UTF-8 Encoding | 0xE1 0xA9 0xA6 |
| UTF-16 Encoding | 0x1A66 |
| UTF-32 Encoding | 0x00001A66 |
| C/C++/Java Escape | \u1a66 |