tǎo
to discuss
Original meaning:
manage, govern
Depicts using speech (言) and one's hands (寸) to manage or govern. The meaning later shifted to "discuss" and "ask for".
Evolution

Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
Sources
李学勤《字源》p.193-194