Added 9 October 2026
father-in-law
/ˈfɑːðəɹɪnˌlɔː/ noun
In Latin: socer, patraster Wiktionary
noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about father-in-law at Wordnik → Where our words come from →
Origin
From Middle English fader in lawe, fadyr-in-lay, fader yn lawe, equivalent to father + -in-law.
From Wiktionary, via Kaikki.org (CC BY-SA)