난 거야

came from

→ 나다
phrase Rare #27,461
came from The meaning depends on what appeared or arose: it can refer to something coming from a place, hair appearing, or a thought occurring. The ending 거야 makes the phrase casual.
KO: 이 아이디어는 어디서 난 거야?
EN: Where did this idea come from?

그거 어디 서 난 거 야?

Where did you get that?

— 패왕별희 (1993)

이 돌 어디 서 난 거 야?

Where did this stone come from?

— 버닝 (2018)