본래가 · 본래를; also an adverb: 본래 (originally)
origin, original nature; originally
Example
이 카페 건물은 본래 작은 학교였어요.
This café building was originally a small school.
Word parts
본 origin+래 come
Literally 'from the root onward'.
Good to know
Pronounced [볼래]; in conversation 원래 is far more common.
Related words