Where does “phép trừ” come from?

phép trừ (Vietnamese) comes from Vietnamese phép, from Middle Chinese 法.

phép trừ (Vietnamese): substraction

Definitions

  1. substraction

Ancestry of “phép trừ”, step by step

phép trừ traces back through two separate lines of ancestry.

via Vietnamese phép

StepLanguageWordMeaning
1Vietnamesephépcustom; permission; authorization; a methodology
2Middle Chinese

via Vietnamese trụ

StepLanguageWordMeaning
1Vietnamesetrụpillar
2Chinese
Every word from Middle Chinese Every word from Vietnamese phép