bīng
ice
冫 is a component form of 冰. Pictograph of the texture of ice (i.e. the crystalline lines as seen on ice).
Evolution

Bronze script
Early Western Zhou (~1000 BC)
Seal script
Shuowen (~100 AD)Regular script
ModernDefinitions
Component uses
Iconic component in 1 character (1 verified)
Unknown component in 1 character (0 verified)
Sources
林志強《《文源》評注》p.45
鄒暁麗《基础漢字形義釋源》p.208
