Where does “ろ座” come from?

ろ座 (Japanese) comes from Japanese 座, from Middle Chinese 座.

ろ座 (Japanese): Fornax

Definitions

  1. Fornax

Ancestry of “ろ座”, step by step

ろ座 traces back through two separate lines of ancestry.

via Japanese 座

StepLanguageWordMeaning
1Japanese座names of constellations; names of theaters
2Middle Chinese座—

via Japanese 炉

StepLanguageWordMeaning
1Japanese炉furnace, kiln
2Middle Chinese爐—
Every word from Middle Chinese 座 →Every word from Japanese 座 →
ろ座 — Etymology, Origin & Word History | Etymology Explorer