Where does “Flachdach” come from?

Flachdach (German) comes from German dach, from Middle High German dach, from Old High German dag, from Old High German tag, from Proto-West Germanic dag, from Proto-Germanic dagaz, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.

Flachdach (German): flat roof

Definitions

  1. flat roof

Ancestry of “Flachdach”, step by step

Flachdach traces back through two separate lines of ancestry.

via German dach

StepLanguageWordMeaning
1Germandach—
2Middle High Germandach—
3Old High Germandag—
4Old High Germantagday
5Proto-West Germanicdagday
6Proto-Germanicdagazday; name of the D-rune
7Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot

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 dʰegʷʰ- →Every word from Proto-Germanic dagaz →Every word from Proto-West Germanic dag →