This is the 11573rd most frequent Korean word.
나와서야겠느냐
"Do I have to come out?"
Here, '나와서야겠느냐' is used to question the necessity or appropriateness of someone coming out.
내가 그렇게 말했는데, 그 사람이 나와서야겠느냐?
I said that, but does that person need to come out?
In this instance, '나와서야겠느냐' questions one's own choice or decision related to going out.
비가 이렇게 많이 오는데 내가 정말 나와서야겠느냐?
It's raining so much; do I really need to come out?
Here, '나와서야겠느냐' is used to reflect on timing and societal expectations regarding the action of coming out.