wisdom (wîz´dem) noun
1. Understanding of what is true, right, or lasting; insight: "One cannot have wisdom without living life" (Dorothy McCall).
2. Common sense; good judgment: "It is a characteristic of wisdom not to do desperate things" (Henry David Thoreau).
3. a. The sum of scholarly learning through the ages; knowledge: "In those homely sayings was couched the collective wisdom of generations" (Maya Angelou). b. Wise teachings of the ancient sages.
4. A wise outlook, plan, or course of action.
5. Wisdom. Bible. Wisdom of Solomon.
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The Greek word (translated "wisdom") is: sofia:
sofia - wisdom, insight, intelligence
sofo - wise, experienced
In the context of the original quotation, it particularly means the wisdom of the learned and politically dominant classes.
The Greek word translated "understanding" is sunesi.
sunesi - understanding, insight
suneto - intelligent, possessing understanding
The amplified version may help your understanding of the Greek word that is translated "wisdom." The word used in I Cor 1:19 has the more traditional sense of the word, meaning "intelligence" or "cleverness."
For it is written, I will baffle and render useless and destroy the learning of the learned and the philosophy of the philosophers and the cleverness of the clever and the discernment of the discerning; I will frustrate and nullify [them] and bring [them] to nothing.
I sincerely hope this help you to understand what I intended in my earlier post.
Thanks,
Russ