Where does “Flachglas” come from?

Flachglas (German) comes from German Flach, from Middle High German vlach, from Old High German flah, from Proto-West Germanic *flak, from Proto-Germanic flakaz, from Proto-Indo-European pl̥keh — flat surface.

Flachglas (German): pane, windowpane, plate glass, flat glass, sheet glass

Definitions

  1. pane, windowpane, plate glass, flat glass, sheet glass

Ancestry of “Flachglas”, step by step

Flachglas traces back through two separate lines of ancestry.

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

via German glas

StepLanguageWordMeaning
1Germanglasglass
2Old High Germanglas—
3Proto-West Germanicglasglass
4Proto-Germanicglasąglass
5Proto-Indo-Europeanǵʰel-to shine, glimmer, glow; to shimmer, gleam;...
Every word from Proto-Indo-European pl̥keh →Every word from Proto-Germanic flakaz →Every word from Proto-West Germanic *flak →
Flachglas — Etymology, Origin & Word History | Etymology Explorer