Strong's #6940: qadruwth (pronounced kad-rooth')

from 6937; duskiness:--blackness.

Brown-Driver-Briggs Hebrew Lexicon:

ּ

qadrûth

1) darkness, gloom

Part of Speech: noun feminine

Relation: from H6937

Usage:

This word is used 1 times:

 

Isaiah 50:3: "I clothe the heavens with blackness, and I make sackcloth their covering."