חשׁך
chôshek
kho-shek'
From H2821; the dark; hence (literally) darkness; figuratively misery, destruction, death, ignorance, sorrow, wickedness
KJV Usage: dark (-ness), night, obscurity.

Brown-Driver-Briggs' Hebrew Definitions

חשׁך

1. darkness, obscurity
a. darkness
b. secret place
Origin: from H2821
TWOT: 769a
Parts of Speech: Noun Masculine