hōng
rumble
Simplified form of 轟. Depicts the sound made by many vehicles (车). The meaning later shifted to "rumble".
Components
又 Simplified component
yòu
(hand), again
Shorthand for the 車 component in the traditional character 轟.
又 Simplified component
yòu
(hand), again
Shorthand for the 車 component in the traditional character 轟.
Evolution

Seal script
Shuowen (~100 AD)Traditional script
ModernSimplified script
ModernDefinitions