Where does “亜界” come from?

亜界 (Japanese) comes from Japanese 界, from Middle Chinese 界.

亜界 (Japanese): subkingdom

Definitions

  1. subkingdom

Ancestry of “亜界”, step by step

亜界 traces back through two separate lines of ancestry.

via Japanese 界

StepLanguageWordMeaning
1Japanese界boundary; a bounded area or region; a bounded...
2Middle Chinese界—

via Japanese 亜

StepLanguageWordMeaning
1Japanese亜"indicates a lower oxidation number": -ous
2Middle Chinese亞—
Every word from Middle Chinese 界 →Every word from Japanese 界 →