扉: a door, a title page

止まる, 留まる, 停まる: stop / 泊まる: stay for the night

surely, certainly

一つ: one thing

態と: intentionally, on purpose, deliberately

a cousin

仕事: work, occupation, employment

more

止める: to stop [something] / 泊める: to provide lodging for [someone] / 留める: to hook something, to button (a button), tie a (ribbon), fix something (at) / 停める: to park (a car)

(Classical Japanese or literary) adnominal perfect-continuative of とむ; adnominal of とめり (nemureri)