κακοποιῆσαι,  [2 verses] (verb aor inf act) "Do evil" is kakopoieo, which means "to do ill", "to play the knave," and "to do mischief," and "to injure."  - The verb translated as "to do evil" means "to do ill", "to play the knave," and "to do mischief," and "to injure." It combines the verb meaning "to make" or "to perform" with the common Greek adjective meaning many different forms of "bad," including "ugly", "low born", "craven," and "ill." In the NT, it is often translated as "evil." More about it in this article.