Rashi on Isaiah
and with your contender Heb. יְרִיבֵךְ. And with your contender I will contend.
Ibn Ezra on Isaiah
The captive of the mighty. The captive which the mighty man has taken, will be taken away from him.
Ibn Ezra on Isaiah
עריץ The terrible. It is an adjective with transitive meaning: causing terror; comp. אימים (Gen. 14:5).