ج و وj-w-w
— جَوٌّjaww: the atmosphere, the open space between heaven and earth, the vast expanse of air; also the inner, open part of something. This root occurs only once in the Quran, and that as a noun: ﴿أَلَمْ يَرَوْا إِلَي الطَّيْرِ مُسَخَّرٰتٍ فِيْ جَوِّ السَّمَآءِ﴾ (An-Naḥl 16:79) — i.e. in the air of the sky. No verb from this root is used in the Quran.