Arb.
γlm ‘to be vehemently affected with lust’ is usually considered to be denominative from γulām-, but cf. Jib.
γéləm ‘(camels) to run wild (after the summer)’, with no comparable nominal form (an Arabism?)
There is hardly any connection with PWS
*γlm ‘to be dark
(Kogan 2015: 187)