Where does “尾椎” come from?

尾椎 (Japanese) comes from Japanese 尾, from Old Japanese 尾.

尾椎 (Japanese): a coccygeal vertebra

Definitions

  1. a coccygeal vertebra

Ancestry of “尾椎”, step by step

尾椎 traces back through two separate lines of ancestry.

via Japanese 尾

StepLanguageWordMeaning
1Japanese尾a tail; the foot of a mountain; the end of...
2Old Japanese尾—

via Japanese 椎

StepLanguageWordMeaning
1Japanese椎any tree of the genus "Castanopsis"
Every word from Old Japanese 尾 →Every word from Japanese 尾 →