'Mother in law' in the Bible

Therewith they cried and wept again. Howbeit, Orpah kissed her mother-in-law but Ruth abode still by her.

And Boaz answered and said unto her, "All is told me that thou hast done unto thy mother-in-law since the death of thine husband; how thou hast left thy father and thy mother, and the land where thou wast born, and art come unto a nation which thou knewest not in time past.

And she took it up and went to the city, and showed her mother-in-law what she had gathered. And thereto she plucked out and gave to her that she had reserved when she had eaten enough.

Then said her mother-in-law unto her, "Where gatheredst thou today? And where wroughtest thou? Blessed be he that knew thee." And she showed her mother-in-law with whom she had wrought and said, "The man's name with whom I wrought today is Boaz."

And so she kept her by the maidens of Boaz, to gather unto the end of barley harvest and of wheat harvest also: and dwelt with her mother-in-law.

Then Naomi her mother-in-law said unto her, "My daughter, I will seek rest for thee, that thou mayest be in better case.

And so she went unto the floor, and did according to all that her mother-in-law bade her.

and she came in to her mother-in-law, which said, "What tidings my daughter?" And she told her all that the man had done to her.

And said thereto, "These six measures of barley gave he me and said, 'Thou shalt not go empty unto thy mother-in-law.'"