lóng

grind

Components
龙 sound component

  Sound component

lóng

  

dragon

石 meaning component

  Meaning component

shídàn

  

stone

stone

Evolution

砻 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
砻 Clerical script Western Han dynasty (202 BC-9 AD)

Clerical script

Western Han dynasty (202 BC-9 AD)
砻 Simplified script Modern

Simplified script

Modern
Definitions

() 

lóng

grind, sharpen; mill; to grind; to mill

Most common words with 砻
Freq.
Word
Meaning

to grind

雅砻江

Yalong river of Tibet and Sichuan