Where does “雲形定規” come from?

雲形定規 (Japanese) comes from Japanese 形, from Middle Chinese 形.

雲形定規 (Japanese): French curve

Definitions

  1. French curve

Ancestry of “雲形定規”, step by step

雲形定規 traces back through 3 separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesea shape; a form; a pattern, die, or model from...
2Middle Chinese

via Japanese

StepLanguageWordMeaning
1Japanesea cloud; of how clouds are widely spread; of how...
2Middle Chinese

via Japanese 定規

StepLanguageWordMeaning
1Japanese定規straightedge instrument for drawing lines
Every word from Middle Chinese Every word from Japanese