Where does “Flugfläche” come from?

Flugfläche (German) comes from German flug, from Old High German flug, from Proto-Germanic flugiz, from Proto-Germanic fleuganą, from Proto-Indo-European plewk-, from Proto-Indo-European plew- — to fly, flow, run.

Flugfläche (German): flight level

Definitions

  1. flight level

Ancestry of “Flugfläche”, step by step

Flugfläche traces back through two separate lines of ancestry.

via German flug

StepLanguageWordMeaning
1Germanflugflight (in the air)
2Old High Germanflug—
3Proto-Germanicflugizflight, flying
4Proto-Germanicfleuganąto fly
5Proto-Indo-Europeanplewk-to fly, flow, run; to splash, to flap with hands
6Proto-Indo-Europeanplew-to fly, flow, run

via German fläche

StepLanguageWordMeaning
1Germanflächesurface
2Middle High Germanvleche—
3Old High Germanflahflat, smooth
4Proto-West Germanic*flak—
5Proto-Germanicflakazflat
6Proto-Indo-Europeanpl̥kehflat surface
Every word from Proto-Indo-European plew- →Every word from Proto-Indo-European plewk- →Every word from Proto-Germanic fleuganą →