唇齿
chún​chǐ

interdependent

唇 chún lips

Phonosemantic compound. 口 represents the meaning and 辰 represents the sound. Simplified form of 脣.

Components

口
口 Meaning component
kǒu, kou mouth
辰
辰 Sound component
chén early morning

Character Evolution

Seal form
Seal Shuowen ~100 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld Chinese
Zhengzhangtjɯn
ɦljun
Unicodejhuin

說文解字

驚也。从口辰聲。

Sources

Readings & variants
Unicode
Historical pronunciations
Zhengzhang Shangfang
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

齿 chǐ teeth Simplified

Simplified form of 齒. Pictograph of a mouth full of teeth. The sound component 止 was added later.

Components

止
止 Sound component
zhǐ (foot), stop
𠚕
𠚕 IconicSimplified component
chǐ teeth

Depicts a mouth full of teeth.

Component uses

Meaning (3 of 12 verified)

龄龋龈啮龌龇龅龉龃龆龀𱌮

Sound (1 of 2 verified)

啮龊

Sources

Character origin
季旭昇《說文新證》p.139
Readings & variants
Unicode

齒 chǐ teeth Traditional

Pictograph of a mouth full of teeth. The sound component 止 was added later.

Components

止
止 Sound component
zhǐ (foot), stop
𠚕
𠚕 Iconic component
chǐ teeth

Depicts a mouth full of teeth.

Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Late Shang ~1100 BC
Bronze form
Bronze Late Warring States ~250 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Meaning (3 of 15 verified)

齡齮齧齣齦齲齜齵齟齶齱嚙齙齷齬

Sound (1 of 2 verified)

齪嚙

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagarttsyhiXt-[k]ʰə(ŋ)ʔ (or *t.ŋ̊əʔ)front teeth

說文解字

《說文》：“齒，口齗骨也。象口齒之形。止聲。，古文齒字。”

Sources

Character origin
季旭昇《說文新證》p.139
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)