되뇌어 is adjective form of verb 되뇌다 되 is a prefix to mean "repeat" 뇌다 measn "say again" 되뇌다 repeat oneself, remind oneself again by saying it. Here are some examples) 예시를 들어보면, 잊혀진 사상자들의 이름을 되뇌어 본다 I am repeating over again the name of the forgotten casualties. 되뇌어 생각해보면 말도 안되는 일이야. If you reconsider it, it doesn't make sense.

되뇌다 : repeat,echo,remind