14th century, in the meaning defined at sense 1
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Cite this Entry
“Mother-in-law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mother-in-law. Accessed 16 May. 2022.
More Definitions for mother-in-law
More from Merriam-Webster on mother-in-law
Nglish: Translation of mother-in-law for Spanish Speakers
Britannica English: Translation of mother-in-law for Arabic Speakers
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