'Daughters in law' in the Bible

Then she arose, she and her daughters-in-law, and returned out of the country of Moab, - for she had heard, in the country of Moab, how that Yahweh had visited his people, in giving unto them, bread.

So she went forth out of the dwelling-place where she had remained, and her two daughters-in-law with her, - and they went on the way, to return unto the land of Judah.

Then said Naomi to her two daughters-in- law: Go return, each one to the house of her mother, - Yahweh deal with you in lovingkindness, as ye have dealt with the dead, and with me.