Where does “tàu điện ngầm” come from?

tàu điện ngầm (Vietnamese) comes from Vietnamese tàu điện, from Vietnamese Tàu, from Vietnamese Ba Tàu, from Vietnamese ba, from Proto-Vietic paː, from Proto-Mon-Khmer piʔ.

tàu điện ngầm (Vietnamese): subway, rapid transit, underground

Definitions

  1. subway, rapid transit, underground

Ancestry of “tàu điện ngầm”, step by step

tàu điện ngầm traces back through two separate lines of ancestry.

via Vietnamese tàu điện

StepLanguageWordMeaning
1Vietnamesetàu điệna powered train
2VietnameseTàuChinese; Chink
3VietnameseBa TàuOf or pertaining to ethnic Chinese people in...
4Vietnamesebafather; three; secondborn
5Proto-Vieticpaːthree
6Proto-Mon-Khmerpiʔ

via Vietnamese ngầm

StepLanguageWordMeaning
1Vietnamesengầmunderground; subterranean; secret; covert;...
Every word from Proto-Mon-Khmer piʔEvery word from Proto-Vietic paːEvery word from Vietnamese ba
tàu điện ngầm — Etymology, Origin & Word History | Etymology Explorer