This is the 10099th most frequent Korean word.
과실로
"By mistake" or "due to fault."
In this sentence, '과실로' is used to mean 'due to one's fault' or 'because of one's mistake.' It indicates that the subject's error was the cause of the problem.
그는 그의 과실로 문제를 일으켰다.
He caused problems due to his fault.
Here, '과실로' means 'mistakenly,' specifying that the wrong action was due to an error or oversight.
과실로 문서를 잘못 첨부했습니다.
I mistakenly attached the wrong document.
'과실로' in this case refers to 'caused by negligence,' implying legal responsibility for actions resulting from one's neglect or carelessness.