Where does “旅行証明書” come from?

旅行証明書 (Japanese) comes from Japanese 旅行, from Middle Chinese 旅行.

旅行証明書 (Japanese): travel documents

Definitions

  1. travel documents

Ancestry of “旅行証明書”, step by step

旅行証明書 traces back through two separate lines of ancestry.

via Japanese 旅行

StepLanguageWordMeaning
1Japanese旅行travel, a trip, a journey, a voyage, a tour; to...
2Middle Chinese旅行—

via Japanese 証明書

StepLanguageWordMeaning
1Japanese証明書certificate
2Middle Chineseしょうめいしょ—
Every word from Middle Chinese 旅行 →Every word from Japanese 旅行 →
旅行証明書 — Etymology, Origin & Word History | Etymology Explorer