# 蝀

| 蝀 | U+8740, &#34624; CJK UNIFIED IDEOGRAPH-8740 |
| ← 蜿 [U+873F] | CJK Unified Ideographs | 蝁 → [U+8741] |

## Translingual
### Han character

蝀 (Kangxi radical 142, 虫+8, 14 strokes, cangjie input 中戈木田 (LIDW), four-corner 5519$_6$, composition ⿰虫東)

#### References

* Kangxi Dictionary: page 1088, character 10
* Dai Kanwa Jiten: character 33213
* Dae Jaweon: page 1554, character 29
* Hanyu Da Zidian (first edition): volume 4, page 2860, character 4
* Unihan data for U+8740

## Chinese
### Glyph origin

| | Old Chinese |
| 東 | *toːŋ |
| 菄 | *toːŋ |
| 鶇 | *toːŋ |
| 倲 | *toːŋ |
| 涷 | *toːŋ, *toːŋs |
| 蝀 | *toːŋ, *toːŋʔ |
| 凍 | *toːŋ, *toːŋs |
| 鯟 | *toːŋ |
| 崠 | *toːŋ |
| 埬 | *toːŋ |
| 棟 | *toːŋs |
Phono-semantic compound (形聲／形声, OC *toːŋ, *toːŋʔ) : semantic 虫 (“insect”) + phonetic 東 (OC *toːŋ).

### Etymology

Cognate with 虹 (OC *kroːŋs, *koːŋs, *ɡoːŋ). See there for more. Also cognate with Nusu thoŋ³¹ gɹi⁵⁵

### Pronunciation

* Mandarin
    (Pinyin): dōng, dòng (dong$^1$, dong$^4$)
    (Zhuyin): ㄉㄨㄥ, ㄉㄨㄥˋ
* Cantonese (Jyutping): dung$^1$ / dung$^2$ / dung$^3$
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: dōng
*** Zhuyin: ㄉㄨㄥ
*** Tongyong Pinyin: dong
*** Wade–Giles: tung$^1$
*** Yale: dūng
*** Gwoyeu Romatzyh: dong
*** Palladius: дун (dun)
*** Sinological IPA : /tʊŋ⁵⁵/
** (Standard Chinese)
*** Hanyu Pinyin: dòng
*** Zhuyin: ㄉㄨㄥˋ
*** Tongyong Pinyin: dòng
*** Wade–Giles: tung$^4$
*** Yale: dùng
*** Gwoyeu Romatzyh: donq
*** Palladius: дун (dun)
*** Sinological IPA : /tʊŋ⁵¹/
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: dung$^1$ / dung$^2$ / dung$^3$
*** Yale: dūng / dúng / dung
*** Cantonese Pinyin: dung$^1$ / dung$^2$ / dung$^3$
*** Guangdong Romanization: dung$^1$ / dung$^2$ / dung$^3$
*** Sinological IPA : /tʊŋ⁵⁵/, /tʊŋ³⁵/, /tʊŋ³³/
* Middle Chinese: tuwng, tuwngX
Rime :
| Character | 蝀 | 蝀 |
| Reading # | 1/2 | 2/2 |
| Initial (聲) | 端 (5) | 端 (5) |
| Final (韻) | 東 (1) | 東 (1) |
| Tone (調) | Level (Ø) | Rising (X) |
| Openness (開合) | Open | Open |
| Division (等) | I | I |
| Fanqie | 德紅切 | 多動切 |
| Baxter | tuwng | tuwngX |
| Reconstructions |||
| Zhengzhang Shangfang | /tuŋ/ | /tuŋ$^X$/ |
| Pan Wuyun | /tuŋ/ | /tuŋ$^X$/ |
| Shao Rongfen | /tuŋ/ | /tuŋ$^X$/ |
| Edwin Pulleyblank | /təwŋ/ | /təwŋ$^X$/ |
| Li Rong | /tuŋ/ | /tuŋ$^X$/ |
| Wang Li | /tuŋ/ | /tuŋ$^X$/ |
| Bernard Karlgren | /tuŋ/ | /tuŋ$^X$/ |
| Expected Mandarin Reflex | dōng | dǒng |
| Expected Cantonese Reflex | dung$^1$ | dung$^2$ |
* Old Chinese
    (Zhengzhang): /*toːŋ/, /*toːŋʔ/
Zhengzhang system (2003) :
| Character | 蝀 | 蝀 |
| Reading # | 1/2 | 2/2 |
| No. | 2440 | 2445 |
| Phonetic component | 東 | 東 |
| Rime group | 東 | 東 |
| Rime subdivision | 0 | 0 |
| Corresponding MC rime | 東 | 董 |
| Old Chinese | /*toːŋ/ | /*toːŋʔ/ |

### Definitions

蝀
* Only used in 螮蝀／䗖𬟽 (dìdōng, “rainbow”); also used as its short form.

### Compounds

* 玉蝀／玉𬟽
* 虹蝀／虹𬟽
* 螮蝀／䗖𬟽 (dìdōng)
* 金鰲玉蝀／金鳌玉𬟽

### References

* Dictionary of Chinese Character Variants (教育部異體字字典), B04287
* “蝀”, in 漢語多功能字庫 (Multi-function Chinese Character Database)‎, 香港中文大學 (the Chinese University of Hong Kong), 2014–

## Japanese
### Kanji

(Hyōgai kanji)
* rainbow

#### Readings

* On (unclassified): とう (tō)、つ (tsu)

## Korean
### Etymology

From Middle Chinese 蝀 (MC tuwng|tuwngX). Recorded as Middle Korean 도ᇰ〯 (twǒng) (Yale: twong) in Hunmong Jahoe (訓蒙字會 / 훈몽자회), 1527.

### Hanja

Wikisource 蝀 (eumhun 무지개 동 (mujigae dong))
* hanja form of 동 (“rainbow”)

### References

* 국제퇴계학회 대구경북지부 (國際退溪學會 大邱慶北支部) (2007). Digital Hanja Dictionary, 전자사전／電子字典.