Where does “khói bụi” come from?

khói bụi (Vietnamese) comes from Vietnamese bụi, from Proto-Vietic buːlʔ, from Proto-Mon-Khmer tbul.

khói bụi (Vietnamese): dust; smog

Definitions

  1. dust; smog

Ancestry of “khói bụi”, step by step

khói bụi traces back through two separate lines of ancestry.

via Vietnamese bụi

StepLanguageWordMeaning
1Vietnamesebụidust; dusty; bush, shrub, clump
2Proto-Vieticbuːlʔ—
3Proto-Mon-Khmertbul—

via Vietnamese khói

StepLanguageWordMeaning
1Vietnamesekhóismoke
2Proto-Vietick-hɔːjʔsmoke
Every word from Proto-Mon-Khmer tbul →Every word from Proto-Vietic buːlʔ →Every word from Vietnamese bụi →
khói bụi — Etymology, Origin & Word History | Etymology Explorer