Where does “横隔膜” come from?

横隔膜 (Japanese) comes from Japanese 横, from Middle Chinese 橫.

横隔膜 (Japanese): a thoracic diaphragm

Definitions

  1. a thoracic diaphragm

Ancestry of “横隔膜”, step by step

横隔膜 traces back through two separate lines of ancestry.

via Japanese 横

StepLanguageWordMeaning
1Japanese横side
2Middle Chinese橫—

via Japanese 隔膜

StepLanguageWordMeaning
1Japanese隔膜—
Every word from Middle Chinese 橫 →Every word from Japanese 横 →
横隔膜 — Etymology, Origin & Word History | Etymology Explorer