'Stay' in the Bible
Boaz then addressed Ruth: "Listen, my daughter! Don't glean in any other field. Don't even leave this one, and be sure to stay close to my women servants.
Then Ruth the Moabite woman added, "He also told me "Stay close to my young men until they have completed my entire harvest.'"
So Ruth continued to stay close to the young women who worked for Boaz, gathering grain until both the barley and wheat harvests were complete, all the while living with her mother-in-law.
Stay the night, and if he fulfills his duty as your related redeemer in the morning, that will be acceptable. But if he isn't inclined to do so, then, as the LORD lives, I will act as your related redeemer myself. So lie down until morning."