A primitive root; to be {ashy} that {is} dark colored; by implication to mourn (in sackcloth or sordid garments): - be black ({-ish}) be (make) dark ({-en}) X {heavily} (cause to) mourn.
From H6937; dusky (of the skin or the tent); {Kedar} a son of Ishmael; also (collectively) bedawin (as his descendants or representatives): - Kedar.
Verse
Matrix
1Ki 18:45And it came to pass in the mean while, that the heaven was blackH6937 with clouds and wind, and there was a great rain. And Ahab rode, and went to Jezreel.
Jer 4:28For this shall the earth mourn, and the heavens above be blackH6937: because I have spoken it, I have purposed it, and will not repent, neither will I turn back from it.
Eze 31:15Thus saith the Lord GOD; In the day when he went down to the grave I caused a mourning: I covered the deep for him, and I restrained the floods thereof, and the great waters were stayed: and I caused Lebanon to mournH6937 for him, and all the trees of the field fainted for him. ▼
Eze 32:7And when I shall put thee out, I will cover the heaven, and makeH6937 the stars thereof darkH6937; I will cover the sun with a cloud, and the moon shall not give her light. ▼
Joe 2:10The earth shall quake before them; the heavens shall tremble: the sun and the moon shall be darkH6937, and the stars shall withdraw their shining:
Mic 3:6Therefore night shall be unto you, that ye shall not have a vision; and it shall be dark unto you, that ye shall not divine; and the sun shall go down over the prophets, and the day shall be darkH6937 over them. ▼▼