to make someone stumble, to trip up
As if from a root ك ع ب ل (k ʕ b l) from كَعْب (kaʕb) with augment as in عَرْقَلَ (ʕarqala) from عِرْق (ʕirq).
Practice speaking and memorizing "كعبل" and many other words and sentences in Arabic.