Where does “肺炎” come from?

肺炎 (Japanese) comes from Japanese 炎, from Old Japanese 炎, from Old Japanese 火, from Proto-Japonic poy, from Proto-Japonic po.

肺炎 (Japanese): pneumonia

Definitions

  1. pneumonia

Ancestry of “肺炎”, step by step

肺炎 traces back through two separate lines of ancestry.

via Japanese 炎

StepLanguageWordMeaning
1Japanese炎a flame; an intense emotion, passion; -itis,...
2Old Japanese炎a flame
3Old Japanese火a fire; a light
4Proto-Japonicpoyfire
5Proto-Japonicpo—

via Japanese 肺

StepLanguageWordMeaning
1Japanese肺lung
2Middle Chinese肺—
Every word from Proto-Japonic po →Every word from Proto-Japonic poy →Every word from Old Japanese 火 →