zài
again
Depicts catching two (二) fish at once, conveying the meaning "again". The fish component is similar to the bottom half of 冓.
Components
Evolution

Oracle script
(~1250-1000 BC)
Bronze script
Early Warring States (~400 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Qin dynasty (221-206 BC)Regular script
ModernDefinitions
Sources
季旭昇《說文新證》p.315-316