- Original: כּסל - Transliteration: Kacal - Phonetic: kaw-sal' - Definition: 1. (Qal) to be foolish, be stupid - Origin: a primitive root - TWOT entry: 1011 - Part(s) of speech: Verb - Strong's: A primitive root; properly to be fat that is (figuratively) silly: - be foolish. Total KJV Occurrences: 1 • foolish, 1 Jeremiah 10:8