νενίκηκα [2 verses] (1st sg perf ind act) "Have overcome" is from nikao, which means "to conquer", "to prevail", "to be superior", "to succeed", "to vanquish," and "to overpower." - --  The verb translated as "overcome" means "to conquer", "to prevail", "to be superior", "to succeed", "to vanquish," and "to overpower."