날개를 달아요 · 달았어요 · 달 거예요 (ㄹ drops); often 날개를 단 듯 팔리다
to take off, to gain momentum; to get a big boost
Example
그 드라마가 인기를 얻으면서 원작 소설도 날개를 달았어요.
As the drama became popular, the original novel took off too.
Word parts
Literally 'to attach wings' — something suddenly able to fly.
Good to know
날개 돋친 듯 팔리다 'to sell as if it grew wings' is the go-to phrase for something selling fast.