'Daughters in law' in the Bible

Then she arose with her daughters-in-law that she might return from the land of Moab, for she had heard in the land of Moab that the Lord had visited His people in giving them food.

So she departed from the place where she was, and her two daughters-in-law with her; and they went on the way to return to the land of Judah.

And Naomi said to her two daughters-in-law, “Go, return each of you to her mother’s house. May the Lord deal kindly with you as you have dealt with the dead and with me.