못 오게

prevent from coming

→ 못
phrase Common #4,641
prevent from coming Usually used with 하다 to mean “to prevent someone from coming” or “make it so someone cannot come.”
KO: 아이들이 위험한 곳에 못 오게 문을 잠갔어요.
EN: I locked the door so the children couldn't come into the dangerous area.

누나는 못 오게 했어요?

Why didn't you let my sister come?

— 콰이어트 플레이스 (2018)

근처에 못 오게 해주세요

Please keep them from coming near.

— 더 위치 (2016)

다신 못 오게

Make sure they never come back.

— 길 (1954)