Where does “依頼書” come from?

依頼書 (Japanese) comes from Japanese 書, from Middle Chinese 書.

依頼書 (Japanese): written request

Definitions

  1. written request

Ancestry of “依頼書”, step by step

依頼書 traces back through two separate lines of ancestry.

via Japanese 書

StepLanguageWordMeaning
1Japanese書document; letter
2Middle Chinese書—

via Japanese 依頼

StepLanguageWordMeaning
1Japanese依頼a request
Every word from Middle Chinese 書 →Every word from Japanese 書 →