吮
shǔn

suck with mouth

Phonosemantic compound. 口 represents the meaning and 允 represents the sound.

Components

口
口 Meaning component
kǒu, kou mouth
允
允 Sound component
yǔn allow, permit

Character Evolution

Seal form
Seal Shuowen ~100 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld Chinese
Zhengzhangzlonʔ
ɦljunʔ
Unicodejhuǐn

說文解字

欶也。从口允聲。

Sources

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