עָרֹב (ʿārōb) is
a Hebrew noun
meaning swarm. It appears
9 times
in 2 books of the Hebrew Bible
(Strong's H6157).
Same Hebrew root (TWOT 1685c)
Range of meaning (TWOT 1685c)swarm, mixture; mosquito; divers sorts of flies
Full entry: Brown-Driver-Briggs and Strong's
עָרֹבnoun, masculine: swarm, mixture
probably swarm (mixture, from incessant, involved motion)
Strong's H6157עָרֹב: a mosquito (from its swarming) KJV:divers sorts of flies, swarm.
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.