From chashak; the dark; hence (literally) darkness; figuratively, misery, destruction, death, ignorance, sorrow, wickedness -- dark(-ness), night, obscurity.
see HEBREW chashak
H2822. choshek
ח֫שֶׁךְ noun masculineExodus 10:21 darkness, obscurity — absolute חשֶׁךְ Genesis 1:2 75t. (+ Ezekiel 8:12 strike out Co A B etc.); construct id. Exodus 10:22; suffix חָשְׁכִּי Psalm 18:29 = 2 Samuel 22:29; —
1 darkness (opposed to אוֺר) literal Genesis 1:2, 4 (P), Isaiah 45:7; Job 26:10; Ecclesiastes 2:13, compare in imprecation Job 3:4-5, (׳ח וצלמות) = לילה Genesis 1:5, 18 (P), compare Joshua 2:5 (JE), Isaiah 45:19; Job 17:12; 24:16; 38:19; Psalm 104:20; darkness in mines Job 28:3; of extraordinary darkness, in Egypt Exodus 10:21 (twice in verse) (E); אֲֿפֵלָה׳ח 10:22 (E), Psalm 105:28, from pillar of cloud Exodus 14:20; at Mt. Sinai Deuteronomy 4:11; 5:20; of clouds of theophany 2 Samuel 22:12 = Psalm 18:12; of darkness in death, or She'ô l, 1 Samuel 2:9; Job 10:21 (ח ׳אֶרֶץ וצלמות), 17:13; 18:18; Psalm 88:13; Proverbs 20:20 (ח ׳אִישׁוֺן = extreme of darkness).
2 = secret place(s) Isaiah 45:3; Job 12:22 ("" צלמות); = hiding-place 34:22 ("" id.), compare Psalm 139:11; 139:12; — on Ezekiel 8:12, see above 3 figurative,
a. = distress Isaiah 5:30; 9:1; 29:18 (figurative of blindness), 42:7; 49:9; 58:10; 59:9; 60:2; Lamentations 3:2; Micah 7:8; Psalm 18:29 = 2 Samuel 22:29; Job 15:22-23, 30; 20:26; 22:11; 23:17; 29:3; Psalm 107:10; 107:14 (in both "" צלמות), 112:4; Ecclesiastes 5:16; 11:8.
b. = dread, terror, symbolic of judgment Amos 5:18, 20; Zephaniah 1:15; Nahum 1:8; Ezekiel 32:8; Joel 2:4; 3:4.
c. = mourning Isaiah 47:5.
d. = perplexity Job 5:14; 12:25; 19:8; confusion Psalm 35:6.
e. = ignorance Job 37:19; Ecclesiastes 2:14.
f. = evil, sin Isaiah 5:20 (twice in verse); Proverbs 2:13.
g. = obscurity Ecclesiastes 6:4 (twice in verse).
חשׁך (see Biblical Hebrew חֹשֶׁךְ darkness, √ חשׁך).