father-in-law

[fah-th er-in-law]
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Origin of father-in-law

Middle English word dating back to 1350–1400; see origin at father, in, law1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for father-in-law

father-in-law

noun plural fathers-in-law
  1. the father of one's wife or husband
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012