Readings & Meanings:
wise, clever, smart
He is a very smart child, but also very cunning and street-smart.
He decided to go to College A and not College B. A wise choice.
We establish this bronze statue in memory of the local wise man.
貝, Kai-hen, is our radical here.
臤 is our phonetic.
臣 is a pictograph of an eye looking down at the ground (suggesting a slave or servility). 又 is a hand, or, an action indicator. Unfortunately, breaking 臤 apart will do little to help us understand it, because its meaning of "wise" is borrowed and has nothing to do with its components.
I guess the addition of 貝 indicates a shrewdness on par with top economists...?