Harari

kuruˀ - cubit, arm below the elbow (EDH 93)

probably related or there can be a connection with *kurāˁ- - knee and shin-bone; lower leg (of animal) (SED I No. 157, Kogan 2011: 225)

PS
*kVrm- - joint of limb bones; flexion, bend of limbs (SED I No. 149; Kogan 2011: 215)