옛날이 · 옛날을
the old days, long ago; once upon a time
Example
옛날에는 이 동네에 큰 나무가 많았어요.
In the old days, there were many big trees in this neighborhood.
Word parts
옛 'old, former' + 날 'day'.
Good to know
Pronounced [옌날] — nasalization; folk tales begin with 옛날 옛적에 'once upon a time'.
Related words