Translation of "굳어진" in English

오랫동안 마음 속에 굳어진 개념들도

and that cement that held his ideas together in his mind for so long

이 점은 적어도 1941년 이래 굳어진 오래된 추세이죠.

which is an old trend that has held since 1941 at least.

KKK단에 대한 그의 생각은 오랜 시간 굳어진 것이니까요.

because his views on the Klan had been cemented in his mind for years.

그것은 오랜 시간동안 맘 속에 굳어진 것이기 때문입니다.

because my views on the Klan's been pretty much cemented in my mind for years.