godan verb (-su), intransitive verb
stay at; stop at; lodge at
Intransitive godan verb meaning to stay overnight or temporarily at a place, such as an inn or someone's house. Somewhat formal or literary; in everyday speech 泊まる is more common.
旅の途中、古い宿に宿した。
During the journey, I stayed at an old inn.
彼は友人の家に一晩宿
He stayed overnight at a friend's house.