#3687 כְּסִילוּת k@ciyluwth {kes-eel-ooth'}

 from H3684; TWOT - 1011d; n f

—Hebrew Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) foolishness, stupidity

—Brown-Driver-Briggs (Old Testament Hebrew-English Lexicon)

—Strong's (Hebrew & Chaldee Dictionary of the Old Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - foolish 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)