-고 나서야 / -아/어서야 비로소 + realization
only then, not until, for the first time
Example
부모가 되고 나서야 비로소 부모님 마음을 알았어요.
Only after becoming a parent did I understand my parents' hearts.
Word parts
Probably related to 비롯하다 'to begin' — the moment something first happens.
Good to know
Typically follows -고 나서야 or -아/어서야: 'only after X did Y happen'.
Related words