Where does “数独” come from?

数独 (Japanese) comes from Japanese に, from Old Japanese に.

数独 (Japanese): sudoku

Definitions

  1. sudoku

Ancestry of “数独”, step by step

数独 traces back through 3 separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japaneseparticle for indirect objects; to; particle for...
2Old Japanese

via Japanese

StepLanguageWordMeaning
1Japanesewhat about, where is; Inserted between two verbs...
2Old Japanese

via Japanese 数字

StepLanguageWordMeaning
1Japanese数字a digit; a numeral; a figure, a thing expressed...

Words derived from “数独

Every word from Old Japanese Every word from Japanese
数独 — Etymology, Origin & Word History | Etymology Explorer