# father-in-law

> English word · Noun · IPA /ˈfɑːðəɹɪnˌlɔː/

## Definitions
1. One's spouse's father.
2. A stepfather.

## Etymology
From Middle English fader in lawe, fadyr-in-lay, fader yn lawe, equivalent to father + -in-law.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/father-in-law