tú
smear, spread, paint
Phonosemantic compound. 土 represents the meaning and 涂 represents the sound.
Evolution

Seal script
Shuowen (~100 AD)
Clerical script
Western Han dynasty (202 BC-9 AD)
Clerical script
Eastern Han dynasty (25-220 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
Sources