卧底
wò​dǐ

mole

卧 wò lie down Simplified

Variant form of 臥. Depicts a person (人) with their eye (臣) leaning forward preparing to lie down and sleep.

Components

臣
臣 Iconic component
chén minister

Depicts an eye.

人
人 Iconic component
rén, ren person

Current form looks like 卜.

Change in form
Due to historical stylistic changes, this component is less similar to 人 than it was in ancient scripts.

Sources

Readings & variants
Unicode

底 dǐ bottom

Phonosemantic compound. 广 represents the meaning and 氐 represents the sound.

Components

广
广 Meaning component
guǎng roof
氐
氐 SoundMeaning component
dī, dǐ, zhī bottom

Character Evolution

Seal form
Seal Shuowen ~100 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagarttejXtˤijʔ bottom; stop, obstruct

說文解字

《說文》：“底，山居也。一曰下也。从广，氐聲。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

臥 wò lie down Traditional

Depicts a person (人) with their eye (臣) leaning forward preparing to lie down and sleep.

Components

臣
臣 Iconic component
chén minister

Depicts an eye.

人
人 Iconic component
rén, ren person

Character Evolution

Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
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 Western Han 202 BC-9 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartngwaH[ŋ]ˤ[o]j-s lie down, sleep

說文解字

《說文》：“臥，休也。从人、臣，取其伏也。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)