Irqāl is a quick, long-striding camel gait. Arqalat is feminine singular past; turqil is a feminine singular imperfect made jussive after lam. Malwiyy means twisted; qadd is a strip cut from hide; muḥṣad describes firmness or tight binding.
The words add a concrete item of desert-travel equipment to the description of movement. The whip creates an association between fear and acceleration, while the main praise still lies in the mount’s ability to change pace at the rider’s will.