Where does “dầu mỏ” come from?

dầu mỏ (Vietnamese) comes from Vietnamese mở, from Thai หมอ, from Proto-Southwestern Tai ʰmɔːᴬ, from Proto-Tai ʰmoːᴬ, from Old Chinese 巫.

dầu mỏ (Vietnamese): petroleum

Definitions

  1. petroleum

Ancestry of “dầu mỏ”, step by step

dầu mỏ traces back through two separate lines of ancestry.

via Vietnamese mở

StepLanguageWordMeaning
1Vietnamesemởto open, be open; to unfold, expand, open up; to...
2Thaiหมอexpert; wizard; fortuneteller; clairvoyant;...
3Proto-Southwestern Taiʰmɔːᴬshaman
4Proto-Taiʰmoːᴬshaman
5Old Chinese巫—

via Vietnamese dầu

StepLanguageWordMeaning
1Vietnamesedầuoil; "Dipterocarpus"
2Middle Chinese油—
Every word from Old Chinese 巫 →Every word from Proto-Tai ʰmoːᴬ →Every word from Proto-Southwestern Tai ʰmɔːᴬ →