Phonosemantic compound. 广 represents the meaning and 龙 represents the sound. The meaning later extended to "huge" and "disorderly". Simplified form of 龐.

Evolution

Oracle script

(~1250-1000 BC)

Seal script

Shuowen (~100 AD)

Clerical script

Jin dynasty (266-420 AD)

Traditional script

Modern

Simplified script

Modern

 More