Where does “不知火” come from?

不知火 (Japanese) comes from Japanese 火, from Old Japanese 火, from Proto-Japonic poy, from Proto-Japonic po.

不知火 (Japanese): a marine will o' the wisp, more specifically one...

Definitions

  1. a marine will o' the wisp, more specifically one...

Ancestry of “不知火”, step by step

不知火 traces back through two separate lines of ancestry.

via Japanese 火

StepLanguageWordMeaning
1Japanese火"term relating to fire"; a light; a burning...
2Old Japanese火a fire; a light
3Proto-Japonicpoyfire
4Proto-Japonicpo—

via Japanese 知らぬ

StepLanguageWordMeaning
1Japanese知らぬ—
2Japanese知るto know, be aware of; to learn, acquire; to be...
3Old Japaneseしる—
4Proto-Japonicsiruto know
Every word from Proto-Japonic po →Every word from Proto-Japonic poy →Every word from Old Japanese 火 →