עָב ʻâb (H5645)

properly, an envelope, i.e. darkness (or density, 2 Chronicles 4:17); specifically, a (scud) cloud; also a copse

1) darkness, cloud, thicket 1a) dark cloud 1b) cloud mass 1c) thicket (as refuge)

(masculine and feminine); from עוּב (H5743);