Strong's #3687: kciyluwth (pronounced kes-eel-ooth')
from 3684; silliness:--foolish.
Brown-Driver-Briggs Hebrew Lexicon:
ּּ
kesı̂ylûth
1) foolishness, stupidity
Part of Speech: noun feminine
Relation: from H3684
Usage:
This word is used 1 times:
Proverbs 9:13: " A foolish woman is clamorous: she is simple, and knoweth nothing."