overnight; kept overnight
Used especially for food or items left until the next day. Often appears in set phrases like 宵越しの銭は持たぬ (don't keep money overnight).
Overnight curry tastes good.
It is said that Edokko don't keep money overnight.
Compound of 宵 (よい, evening) and 越し (ごし, crossing over), literally 'crossing over the evening'.