Where does “судоку” come from?

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

судоку (Russian): sudoku

Definitions

  1. sudoku

Ancestry of “судоку”, step by step

StepLanguageWordMeaning
1Japanese数独sudoku
2Japaneseにparticle for indirect objects; to; particle for...
3Old Japaneseに—
Every word from Old Japanese に →Every word from Japanese に →Every word from Japanese 数独 →