Where does “文箱” come from?

文箱 (Japanese) comes from Japanese 文, from Middle Chinese 文.

文箱 (Japanese): letter case; a small box for storing letters, or for holding letters during delivery

Definitions

  1. letter case; a small box for storing letters, or for holding letters during delivery

Ancestry of “文箱”, step by step

文箱 traces back through two separate lines of ancestry.

via Japanese 文

StepLanguageWordMeaning
1Japanese文the mon, an old currency; a unit of length for...
2Middle Chinese文—

via Japanese 箱

StepLanguageWordMeaning
1Japanese箱box
Every word from Middle Chinese 文 →Every word from Japanese 文 →