エネルギー
エネルギー · enerugii · JLPT N3 · noun
energy
⚡🔋 Borrowed from German Energie: e-ne-ru-gii is energy with a German accent
Japanese took this word from German Energie, not from English energy, which is why it has a hard g. The word goes back to Greek energeia, meaning activity or work. Say e-ne-ru-gii out loud and you can hear energy in it.