Where does “護身用” come from?

護身用 (Japanese) comes from Japanese 用, from Middle Chinese 用.

護身用 (Japanese): for self-defense

Definitions

  1. for self-defense

Ancestry of “護身用”, step by step

護身用 traces back through two separate lines of ancestry.

via Japanese 用

StepLanguageWordMeaning
1Japanese用use; a task, business, an errand; for the use of,...
2Middle Chinese用—

via Japanese 護身

StepLanguageWordMeaning
1Japanese護身self-protection
Every word from Middle Chinese 用 →Every word from Japanese 用 →