noun, plural fa·thers-in-law.
Examples from the Web for father-in-law
Earl Spencer adds, “Effectively, my great-grandfather sold his children to his father-in-law.”The Real-Life ‘Downton’ Millionairesses Who Changed Britain|Tim Teeman|December 31, 2014|DAILY BEAST
Now, it appears, a similar Kate-inspired boost is happening to her father-in-law's business.
He caught another break when his father-in-law was one of the Islamists rounded up and imprisoned in 2002.Who Is Fazlullah? The Pakistani Mullah Who Targeted Malala|Michael Daly|November 9, 2013|DAILY BEAST
My father-in-law ended his military career post Korean war as a training officer back home in Canada.
My father-in-law, a non-smoker, wandered away to escape the smell.
He now went to Mass, and was furious with his father-in-law, who was ruining the family on account of Nana.A Zola Dictionary|J. G. Patterson
Were he once the father-in-law of the eldest son of a marquis, he thought he might almost be safe.The Way We Live Now|Anthony Trollope
Fyne was not very communicative in general, but he was proud of his father-in-law.Chance|Joseph Conrad
Why, there was a man out there who killed his father-in-law—actually killed him—and they didn't do anything to him at all.The Wild Olive|Basil King
It was reported that Schuyler, Hamilton's father-in-law, was to head the board of directors.Union and Democracy|Allen Johnson