New King James Version (NKJV)
“22 Understanding is a wellspring of life to him who has it. But the correction of fools is ‘folly’ (nbalah: foolishness, punishment, etc..).”
Strong’s Hebrew Lexicon:
Folly: 5039 nbalah neb-aw-law’ feminine of 5036; foolishness, i.e. (morally) wickedness; concretely, a crime; by extension, punishment:–folly, vile, villany.