Etymology

son-in-law

Today it means: The husband of one's child. Full definition →

Middle English sone in lawe
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Middle English · inherited fromsone in lawe
  2. English todayson-in-law

From Middle English sone in lawe; equivalent to son + -in-law.

Etymology from Wiktionary, CC BY-SA 4.0.