Where does “dài” come from?

dài (Vietnamese) comes from English die, from Latin die, from Latin dies, from Latin diem, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws — to be bright; sky, heaven.

dài (Vietnamese): long, lengthy

Definitions

  1. long, lengthy

Ancestry of “dài”, step by step

dài traces back through 3 separate lines of ancestry.

via English die

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

via Vietnamese giái

StepLanguageWordMeaning
1Vietnamesegiái
2Vietnamesetráileft; reverse; morally wrong, unreasonable,...
3Proto-Vieticp-laːsfathom
4Proto-Mon-Khmerlaasto spread; to extend

via Chinese

StepLanguageWordMeaning
1Chinesebig, great; large

Words derived from “dài

Every word from Proto-Indo-European dyew-Every word from Proto-Indo-European dyéwsEvery word from Proto-Indo-European dyḗws
dài — Etymology, Origin & Word History | Etymology Explorer