Where does “関節炎” come from?

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

関節炎 (Japanese): arthritis

Definitions

  1. arthritis

Ancestry of “関節炎”, step by step

関節炎 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 関節

StepLanguageWordMeaning
1Japanese関節joint
Every word from Proto-Japonic po →Every word from Proto-Japonic poy →Every word from Old Japanese 火 →