# 顎

| 顎 | U+984E, &#38990; CJK UNIFIED IDEOGRAPH-984E |
| ← 額 [U+984D] | CJK Unified Ideographs | 顏 → [U+984F] |

## Translingual
### Han character

顎 (Kangxi radical 181, 頁+9, 18 strokes, cangjie input 口尸一月金 (RSMBC), four-corner 6128$_6$, composition ⿰咢頁)

#### References

* Kangxi Dictionary: page 1407, character 4
* Dai Kanwa Jiten: character 43590
* Dae Jaweon: page 1924, character 20
* Hanyu Da Zidian (first edition): volume 7, page 4382, character 5
* Unihan data for U+984E

## Chinese

* 顎

### Glyph origin

| | Old Chinese |
| 斥 | *ŋ̊ʰjaːɡs, *ŋ̊ʰjaːɡ |
| 訴 | *sŋaːɡs |
| 泝 | *sŋaːɡs |
| 愬 | *sŋaːɡs, *sŋreːɡ |
| 遡 | *sŋaːɡs |
| 塑 | *sŋaːɡs |
| 溯 | *sŋaːɡs |
| 遻 | *ŋaːɡs |
| 柝 | *tŋ̊ʰaːɡ |
| 鶚 | *ŋaːɡ |
| 諤 | *ŋaːɡ |
| 齶 | *ŋaːɡ |
| 鍔 | *ŋaːɡ |
| 遌 | *ŋaːɡ |
| 崿 | *ŋaːɡ |
| 偔 | *ŋaːɡ |
| 堮 | *ŋaːɡ |
| 湂 | *ŋaːɡ |
| 鱷 | *ŋaːɡ |
| 噩 | *ŋaːɡ |
| 咢 | *ŋaːɡ |
| 鑩 | *ŋaːɡ |
| 鄂 | *ŋaːɡ |
| 鰐 | *ŋaːɡ |
| 萼 | *ŋaːɡ |
| 愕 | *ŋaːɡ |
| 顎 | *ŋaːɡ |
| 朔 | *sŋraːɡ |
| 槊 | *sraːwɢ |
| 蒴 | *sraːwɢ |
| 坼 | *tŋ̊ʰraːɡ |
| 拆 | *tŋ̊ʰraːɡ |
| 逆 | *ŋraɡ |
| 屰 | *ŋraɡ |
| 縌 | *ŋraɡ |
| 蝷 | *reːɡ |
Phono-semantic compound (形聲／形声, OC *ŋaːɡ) : phonetic 咢 (OC *ŋaːɡ) + semantic 頁.

### Pronunciation

* Mandarin
    (Pinyin): è (e$^4$)
    (Zhuyin): ㄜˋ
* Cantonese (Jyutping): ngok$^6$
* Eastern Min (BUC): ngáuk
* Southern Min
    (Hokkien, POJ): go̍k
    (Teochew, Peng'im): ngag$^8$
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: è
*** Zhuyin: ㄜˋ
*** Tongyong Pinyin: è
*** Wade–Giles: o$^4$
*** Yale: è
*** Gwoyeu Romatzyh: eh
*** Palladius: э (e)
*** Sinological IPA : /ˀɤ⁵¹/
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: ngok$^6$
*** Yale: ngohk
*** Cantonese Pinyin: ngok$^9$
*** Guangdong Romanization: ngog$^6$
*** Sinological IPA : /ŋɔːk̚²/
* Eastern Min
** (Fuzhou)
*** Bàng-uâ-cê: ngáuk
*** Sinological IPA : /ŋɑuʔ²⁴/
* Southern Min
** (Hokkien)
*** Pe̍h-ōe-jī: go̍k
*** Tâi-lô: go̍k
*** Phofsit Daibuun: gok
*** IPA (Xiamen): /ɡɔk̚⁴/
*** IPA (Quanzhou): /ɡɔk̚²⁴/
*** IPA (Zhangzhou): /ɡɔk̚¹²¹/
*** IPA (Taipei): /ɡɔk̚⁴/
*** IPA (Kaohsiung): /ɡɔk̚⁴/
** (Teochew)
*** Peng'im: ngag$^8$
*** Pe̍h-ōe-jī-like: nga̍k
*** Sinological IPA : /ŋak̚⁴/
* Middle Chinese: ngak
Rime :
| Character | 顎 |
| Reading # | 1/1 |
| Initial (聲) | 疑 (31) |
| Final (韻) | 鐸 (103) |
| Tone (調) | Checked (Ø) |
| Openness (開合) | Open |
| Division (等) | I |
| Fanqie | 五各切 |
| Baxter | ngak |
| Reconstructions ||
| Zhengzhang Shangfang | /ŋɑk̚/ |
| Pan Wuyun | /ŋɑk̚/ |
| Shao Rongfen | /ŋɑk̚/ |
| Edwin Pulleyblank | /ŋak̚/ |
| Li Rong | /ŋɑk̚/ |
| Wang Li | /ŋɑk̚/ |
| Bernard Karlgren | /ŋɑk̚/ |
| Expected Mandarin Reflex | è |
| Expected Cantonese Reflex | ngok$^6$ |
* Old Chinese
    (Zhengzhang): /*ŋaːɡ/
Zhengzhang system (2003) :
| Character | 顎 |
| Reading # | 1/1 |
| No. | 9467 |
| Phonetic component | 屰 |
| Rime group | 鐸 |
| Rime subdivision | 0 |
| Corresponding MC rime | 咢 |
| Old Chinese | /*ŋaːɡ/ |

### Definitions

顎
* jaw

### Compounds

* 下顎／下颚 (xià'è)
* 上顎／上颚 (shàng'è)
* 硬顎／硬颚 (yìng'è)
* 軟顎／软颚 (ruǎn'è)
* 顎下腺／颚下腺
* 顎化／颚化 (èhuà)
* 顎化作用／颚化作用
* 顎裂／颚裂 (èliè)
* 顎骨／颚骨 (ègǔ)
* 齒顎矯正學／齿颚矫正学

### Descendants

* Proto-Tai: *ʰŋɯəkᴰ (“gum; gill”)
** Proto-Southwestern Tai: *ʰŋɯəkᴰ (“gum; gill”)
*** Thai: เหงือก (ngʉ̀ʉak, “gum; gill”)

## Japanese
### Kanji

(Jōyō kanji)
* jaw

#### Readings

* Go-on: がく (gaku, Jōyō)
* Kan-on: がく (gaku, Jōyō)
* Kun: あご (ago, 顎, Jōyō)

### Etymology 1

* Kanji in this term
* 顎
* あご Grade: S
* kun'yomi

#### Pronunciation

* (Tokyo) あご [àgóꜜ] (Odaka – [2])
* IPA: [a̠ɡo̞]

#### Noun

顎(あご) • (ago)
* jaw
* chin
* barb
* jaw of a machine

### Etymology 2

* Kanji in this term
* 顎
* がく Grade: S
* on'yomi

#### Pronunciation

* (Tokyo) がく [gáꜜkù] (Atamadaka –)
* IPA: [ɡa̠kɯ̟]

#### Noun

顎(がく) • (gaku)
* jaw

##### Derived terms

* 顎骨(がくこつ) (gakukotsu, “jawbone”)
* 顎関節(がくかんせつ) (gakukansetsu, “temporomandibular joint”)

### References

* 1 2 Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN

## Korean
### Hanja

顎 • (ak) (hangeul 악, revised ak, McCune–Reischauer ak, Yale ak)
* This term needs a translation to English. Please help out and add a translation, then remove the text {{rfdef}}.