'Father in law' in the Bible

And his daughter-in-law, the wife of Phinehas, conceived to bring forth: and she will hear the message of the taking of the ark of God, and the death of her father-in-law and her husband, and she will bow and bring forth, for her pains turned upon her.

And she will call the boy, Where the Glory? saying, The glory uncovered from Israel: (for the taking of the ark of God, and for her father-in-law, and her husband.)