Where does “鳥貝” come from?

鳥貝 (Japanese) comes from Japanese 貝, from Old Japanese かい.

鳥貝 (Japanese): a Japanese cockle, an egg cockle: an edible...

Definitions

  1. a Japanese cockle, an egg cockle: an edible...

Ancestry of “鳥貝”, step by step

鳥貝 traces back through two separate lines of ancestry.

via Japanese 貝

StepLanguageWordMeaning
1Japanese貝a shellfish
2Old Japaneseかい—

via Japanese 鳥

StepLanguageWordMeaning
1Japanese鳥a bird; a chicken; fowl or chicken meat
Every word from Old Japanese かい →Every word from Japanese 貝 →