Strong H2822 חֹ֫שֶׁךְ chôshek · darkness

Joel

1. Joel 2:2
   A day of darkness and of gloominess, a day of clouds and of thick darkness, as the morning spread upon the mountains: a great people and a strong; there hath not been ever the like, neither shall be any more after it, even to the years of many generations.
2. Joel 2:31
   The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the Lord come.