Where does “Nullenergiehaus” come from?

Nullenergiehaus (German) comes from German Null, from German Nulla, from Italian nulla, from Latin nūlla, from Latin nūllus, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

Nullenergiehaus (German): zero-energy house or building

Definitions

  1. zero-energy house or building

Ancestry of “Nullenergiehaus”, step by step

Nullenergiehaus traces back through 3 separate lines of ancestry.

via German Null

StepLanguageWordMeaning
1GermanNullzero; failure, loser
2GermanNulla
3Italiannullafeminine singular of nullo; nothing, anything;...
4Latinnūllano
5Latinnūllusno one, none, not any, nothing
6Proto-Italicoinoscardinal number 1 Previous: n/a Next: *duō;...
7Proto-Indo-Europeanóynosone; single

via German haus

StepLanguageWordMeaning
1Germanhaussingular imperative of hausen; first-person...
2Middle High Germanhūshouse
3Old High Germanhūshouse
4Proto-West Germanichūshouse
5Proto-Germanichūsąhouse
6Proto-Indo-European(s)kewH-to cover, bedeck; cover

via German Energie

StepLanguageWordMeaning
1GermanEnergieenergy
2Ancient Greekἐνέργειᾰactivity, operation, vigour, efficiency
Every word from Proto-Indo-European óynosEvery word from Proto-Italic oinosEvery word from Latin nūllus