Where does “-in-law” come from?

-in-law (English) comes from English mother-in-law, from Middle English moder in lawe — mother-in-law.

-in-law (English): Related through marriage

Definitions

  1. Related through marriage

Ancestry of “-in-law”, step by step

StepLanguageWordMeaning
1Englishmother-in-lawThe mother of one's spouse; A mother-in-law...
2Middle Englishmoder in lawemother-in-law

Words derived from “-in-law

Every word from Middle English moder in laweEvery word from English mother-in-law