huìkuài

irrigation ditch

Evolution

澮 Seal script Chu (Warring States: 475-221 BC)

Seal script

Chu (Warring States: 475-221 BC)
澮 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
澮 Clerical script Western Jin dynasty (266-316 AD)

Clerical script

Western Jin dynasty (266-316 AD)
Definitions

() 

huì

irrigation ditch, trench; river

() 

kuài

drain; stream