Where does “tam giác đều” come from?

tam giác đều (Vietnamese) comes from Vietnamese đều, from Middle Chinese 調.

tam giác đều (Vietnamese): an equilateral triangle

Definitions

  1. an equilateral triangle

Ancestry of “tam giác đều”, step by step

tam giác đều traces back through two separate lines of ancestry.

via Vietnamese đều

StepLanguageWordMeaning
1Vietnameseđềuequal in size or dimension; constant; equilateral
2Middle Chinese調

via Vietnamese tam giác

StepLanguageWordMeaning
1Vietnamesetam giáctriangle
2Chinese三角triangle; Short for 三角學/三角学; Short for 三角洲
Every word from Middle Chinese 調Every word from Vietnamese đều