conc▪ The value ‘swarm (esp. of locusts)’ of the word riǧl (which also can mean ‘foot’ and ‘common purslane’, see ↗¹riǧl; and ↗³riǧl) is prob. based on, or akin to, ↗†RǦL_8 ‘to let/set free’, and is thus *‘(s.th., animal, etc.) set free and now spreading freely, uncontrollably’, prob. based, ultimately, on ↗¹riǧl.
▪ With this underlying idea, ²riǧl ‘swarm (esp. of locusts)’ is akin to ↗³riǧl ‘common purslane’ (< *‘≈ curly hair, spreading freely/uncontrollably’), ↗raǧǧala ‘to let (hair) fall down freely (> to comb)’, as well as ↗ĭrtaǧala ‘to improvise, extemporize’.
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