Where does “đậu dải áo” come from?

đậu dải áo (Vietnamese) comes from Vietnamese đậu dải, from Vietnamese dài, from English die, from Latin die, from Latin dies, from Latin diem, from Proto-Italic djēm, from Proto-Italic *djous — to be bright; sky, heaven.

đậu dải áo (Vietnamese): yardlong bean, asparagus bean (Vigna unguiculata subsp. sesquipedalis)

Definitions

  1. yardlong bean, asparagus bean (Vigna unguiculata subsp. sesquipedalis)

Ancestry of “đậu dải áo”, step by step

đậu dải áo traces back through two separate lines of ancestry.

via Vietnamese đậu dải

StepLanguageWordMeaning
1Vietnameseđậu dảicowpea (Vigna unguiculata)
2Vietnamesedàilong, lengthy
3EnglishdieTo stop living; to become dead; to undergo death;...
4Latindieablative singular of diēs; day; before the day
5LatindiesA day, "particularly:"
6Latindiemaccusative singular of diēs
7Proto-Italicdjēmaccusative singular of *djous
8Proto-Italic*djous
9Proto-Indo-Europeandyḗwssky, heaven; sky god
10Proto-Indo-Europeandyéwssky, heaven
11Proto-Indo-Europeandyew-to be bright; sky, heaven

via Vietnamese áo

StepLanguageWordMeaning
1Vietnameseáoa top; an outfit
2Proto-Vieticʔaːwʔ
3Proto-Mon-Khmerʔaawʔupper garment
Every word from Proto-Indo-European dyew-Every word from Proto-Indo-European dyéwsEvery word from Proto-Indo-European dyḗws