huò
or
Original meaning:
area
Depicts using a weapon (戈) to defend an area (囗) in a boundary (一). Based on the original meaning "area", now written as 域. The current meaning is a phonetic loan.
Components
Evolution

Bronze script
Early Western Zhou (~1000 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Western Jin dynasty (266-316 AD)Regular script
ModernDefinitions
Component uses
Sources
季旭昇《說文新證》p.864
黃德寬《古文字譜系疏證》p.40