Where does “flachbrüstig” come from?

flachbrüstig (German) comes from German brūst, from Middle High German brust, from Old High German brūst, from Proto-West Germanic brust, from Proto-Germanic brusts, from Proto-Indo-European bʰrews- — to break.

flachbrüstig (German): flat-chested

Definitions

  1. flat-chested

Ancestry of “flachbrüstig”, step by step

flachbrüstig traces back through two separate lines of ancestry.

via German brūst

StepLanguageWordMeaning
1Germanbrūstchest
2Middle High Germanbrust—
3Old High Germanbrūstbreast, chest
4Proto-West Germanicbrustbreast, chest
5Proto-Germanicbrustsbreast, chest
6Proto-Indo-Europeanbʰrews-to break

via German Flach

StepLanguageWordMeaning
1GermanFlachshallow wide and not deep
2Middle High Germanvlach—
3Old High Germanflahflat, smooth
4Proto-West Germanic*flak—
5Proto-Germanicflakazflat
6Proto-Indo-Europeanpl̥kehflat surface
Every word from Proto-Indo-European bʰrews- →Every word from Proto-Germanic brusts →Every word from Proto-West Germanic brust →