Where does “アース” come from?

アース (Japanese) comes from British English earth, from Middle English erthe, from Old English eorþe, from Proto-West Germanic erþu, from Proto-Germanic erþō, from Proto-Indo-European h₁er- — earth.

アース (Japanese): ground, earth, a connection electrically to the...

Definitions

  1. ground, earth, a connection electrically to the...

Ancestry of “アース”, step by step

アース traces back through two separate lines of ancestry.

via British English earth

StepLanguageWordMeaning
1British EnglishearthSoil; Any general rock-based material; The...
2Middle EnglishertheEarth; the world; The Earth's people or...
3Old Englisheorþeground; the planet Earth; dirt
4Proto-West Germanicerþuearth, world; earth, soil
5Proto-Germanicerþōearth
6Proto-Indo-Europeanh₁er-earth

via Old Norse Áss

StepLanguageWordMeaning
1Old NorseÁssa thick pole, main beam (in a house)
2Proto-Germanicastazbranch
3Proto-Indo-Europeanh₃ósdosbranch
Every word from Proto-Indo-European h₁er-Every word from Proto-Germanic erþōEvery word from Proto-West Germanic erþu