Where does “tam giác cân” come from?

tam giác cân (Vietnamese) comes from Vietnamese cân, from French calque, from French calquer, from English ER, from Turkish er, from Ottoman Turkish ایر, from Old Anatolian Turkish ایر, from Proto-Turkic ēder — saddle.

tam giác cân (Vietnamese): isosceles triangle

Definitions

  1. isosceles triangle

Ancestry of “tam giác cân”, step by step

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

via Vietnamese cân

StepLanguageWordMeaning
1Vietnamesecânkilogram; a weighing instrument; a balance,...
2Frenchcalquetracing; calque, loan translation; layer
3Frenchcalquerto model, to imitate, to copy; to trace, to copy...
4EnglishERThe statistic "Earned Run"; Initialism of...
5Turkisherearly; brave; man, male
6Ottoman Turkishایرsaddle, a seat for a rider placed on the back of a horse or other animal
7Old Anatolian Turkishایرearly, at a time in advance of the usual or expected event
8Proto-Turkicēdersaddle

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 Proto-Turkic ēderEvery word from Old Anatolian Turkish ایرEvery word from Ottoman Turkish ایر