chí
pool
Phonosemantic compound. 氵 represents the meaning and 也 represents the sound.
Evolution

Bronze script
Early Western Zhou (~1000 BC)
Clerical script
Western Han dynasty (202 BC-9 AD)
Clerical script
Western Han dynasty (202 BC-9 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernSources