suī
although
Original meaning:
type of lizard
Phonosemantic compound. 虫 represents the meaning and 唯 represents the sound. Based on the original meaning "type of lizard". The current meaning is a phonetic loan.
Evolution

Bronze script
Qin dynasty (221-206 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Cao Wei (Three Kingdoms: 222-280 AD)Regular script
ModernSources