Where does “jaw-jaw” come from?

jaw-jaw (English) comes from English jaw, from Middle English jawe, from Middle English chawe, from Proto-Germanic kawǭ, from Proto-Germanic kewǭ, from Proto-Germanic kewwaną, from Proto-Indo-European ǵyewh₁- — to chew.

jaw-jaw (English): To talk at length; to chatter or jabber

Definitions

  1. To talk at length; to chatter or jabber

Ancestry of “jaw-jaw”, step by step

StepLanguageWordMeaning
1EnglishjawOne of the bones, usually bearing teeth, which...
2Middle Englishjawe—
3Middle Englishchawejaw
4Proto-Germanickawǭjaw
5Proto-Germanickewǭ—
6Proto-Germanickewwanąto chew
7Proto-Indo-Europeanǵyewh₁-to chew
Every word from Proto-Indo-European ǵyewh₁- →Every word from Proto-Germanic kewwaną →Every word from Proto-Germanic kewǭ →