The second form being dual of an unused singular; from an unused root meaning to be lofty; the sky (as aloft; the dual perhaps alluding to the visible arch in which the clouds {move} as well as to the higher ether where the celestial bodies revolve): - {air} X {astrologer} heaven (-s).
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Jdg 4:18¶ And Jael went out to meet Sisera, and said unto him, Turn in, my lord, turn in to me; fear not. And when he had turned in unto her into the tent, she covered him with a mantleH8063. ▼