עָב (ʿāb) is
a Hebrew noun
meaning dark cloud. It appears
32 times
in 11 books of the Hebrew Bible
(Strong's H5645).
Also rendered
cloud
Same Hebrew root (TWOT 1574a)
Range of meaning (TWOT 1574a)dark cloud, cloud-mass, thicket; envelope, darkness, density, cloud, copse; clay
Full entry: Brown-Driver-Briggs and Strong's
עָבnoun, masculine: dark cloud, cloud-mass, thicket
Strong's H5645עָב: properly, an envelope, i.e. darkness (or density, 2 Chronicles 4:17); specifically, a (scud) cloud; also a copse KJV:clay, (thick) cloud, × thick, thicket. Compare H5672.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.
Root family 1574: עוּבʿûb — becloud; be dense, dark; cover with a cloud