tiān
sky
Original meaning:
head
Depicts a person (大) with an emphasized head. Based on the original meaning "head". The meaning later shifted to "top", "high", and "sky".
Components
Evolution

Oracle script
(~1250-1000 BC)
Bronze script
Late Shang dynasty (~1100 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
Component uses
Iconic component in 1 character (1 verified)
Sources
季旭昇《說文新證》p.40-41