Here are examples of the words with the root word "counter":
counterterrorism - which refers to military tasks to prevent or stop terrorism
counterfeit - which means forgery or imitating with the purpose of fraud
countertop - refers to the flat surface especially in the kitche
counteract - meaning to neutralize by acting against
counterattack - refers to the attack made as a reply or response
counterproductive - meaning the opposite of the targeted output or effect
counterpoint - refers to the ideas that may create contrast with the existing elements