remain, be left
Si solo se quedase en casa.
If only he would stay at home.
— Devdas (2002)
Yo quería escaparme, pero él me dijo que me quedase contigo.
I wanted to get away, but he told me to stay with you.
— La strada (1954)
No hubo quien quedase insatisfecho.
No one was left unsatisfied.
Aunque sólo quedase una, sería un desastre.
Even if there were only one left, it would be a disaster.
— Nausicaä del valle del viento (1984)