parent-in-lawn.
/ˈpɛːrəntɪnˌlɔː/, /ˈpɛːrn̩tɪnˌlɔː/, U.S. /ˈpɛrən(t)ᵻnˌlɔ/, /ˈpɛrən(t)ᵻnˌlɑ/ A mother-in-law or father-in-law.
ΘΚΠ
society > society and the community > kinship or relationship > kinsman or relation > parent > [noun] > parent-in-law
parent-in-law1852
1852 J. Fletcher Stud. on Slavery 502 Had the father or mother of Moses been spoken of as the parent-in-law of Zippora, then we may presume this peculiar term would have been used and expressed the fact as to the distinction of races.
1899 Earl Rosebery in Daily News 6 May 4/2 The crusty old parent-in-law.
1932 E. E. Evans-Pritchard in Sociologus 8 411 There may be difficulty later with his parents-in-law because he has taken no steps to protect their daughter from the perils of child-birth.
1976 Southern Evening Echo (Southampton) 10 Nov. 24/7 His wife Josephine and five-year-old son Simon, were at Heathrow Airport yesterday, together with his parents-in-law.
2002 A. Pearson I don't know how she does It (2003) xxx. 260 The domestic goddess entertaining her admiring parents-in-law in her lovely stylish home.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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n.1852