Where does “藻玉” come from?

藻玉 (Japanese) comes from Japanese 玉, from Middle Chinese 玉.

藻玉 (Japanese): St. Thomas bean

Definitions

  1. St. Thomas bean

Ancestry of “藻玉”, step by step

藻玉 traces back through two separate lines of ancestry.

via Japanese 玉

StepLanguageWordMeaning
1Japanese玉"any spherical or similarly-rounded object"; a...
2Middle Chinese玉—

via Japanese 藻

StepLanguageWordMeaning
1Japanese藻alga, algae
Every word from Middle Chinese 玉 →Every word from Japanese 玉 →