duān, zhuān
tip, start, extremity
Pictograph of the roots and leaves of a plant, i.e. the extremities of a plant.
Evolution

Oracle script
(~1250-1000 BC)
Bronze script
Late Spring and Autumn (~500 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Western Han dynasty (202 BC-9 AD)Regular script
ModernDefinitions
Sources