suān
sour, tart
Phonosemantic compound. 酉 represents the meaning and 夋 represents the sound.
Evolution

Bronze script
Warring States (475-221 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
suān
tart, sour; acid; stiff; spoiled; sour; tart; sick at heart; grieved; sore; aching; pedantic; impractical; to make sarcastic remarks about sb; an acid
Sources