Where does “本初子午線” come from?

本初子午線 (Japanese) comes from Japanese 子午線, from Japanese 午, from Japanese 馬, from Middle Chinese 馬.

本初子午線 (Japanese): a prime meridian

Definitions

  1. a prime meridian

Ancestry of “本初子午線”, step by step

本初子午線 traces back through two separate lines of ancestry.

via Japanese 子午線

StepLanguageWordMeaning
1Japanese子午線a meridian
2Japanesenoon; the {{w|Ox |Chinese zodiac Ox}}
3Japanesea horse; a promoted bishop; a sawhorse: a...
4Middle Chinese

via Japanese 本初

StepLanguageWordMeaning
1Japanese本初
Every word from Middle Chinese Every word from Japanese Every word from Japanese