'Son in law' in the Bible

Then the Philistines said, “Who did this?” And they said, “Samson, the son-in-law of the Timnite, because he took his wife and gave her to his companion.” So the Philistines came up and burned her and her father with fire.

Now on the fourth day they got up early in the morning, and he prepared to go; and the girl’s father said to his son-in-law, “Sustain yourself with a piece of bread, and afterward you may go.”