shǔn

suck with mouth

Phonosemantic compound. represents the meaning and represents the sound.

Components
口 meaning component

  Meaning component

kǒu

  

mouth

允 sound component

  Sound component

yǔn

  

allow, permit

Evolution

吮 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
吮 Regular script Modern

Regular script

Modern
Definitions

 

shǔn

suck with mouth, sip, lick; to suck

Most common words with 吮
Freq.
Word
Meaning

to suck

吸吮

to suck in

吮吸

to suck