Where does “nội soi” come from?

nội soi (Vietnamese) comes from Vietnamese sỏi, from Proto-Vietic k-rɔːs, from Proto-Mon-Khmer kruəs.

nội soi (Vietnamese): endoscopy

Definitions

  1. endoscopy

Ancestry of “nội soi”, step by step

nội soi traces back through two separate lines of ancestry.

via Vietnamese sỏi

StepLanguageWordMeaning
1Vietnamesesỏipebble, gravel; accustomed to; acquainted with;...
2Proto-Vietick-rɔːs—
3Proto-Mon-Khmerkruəs—

via Vietnamese nói

StepLanguageWordMeaning
1Vietnamesenóito speak, to talk, to say, to tell
2Chinese內—
Every word from Proto-Mon-Khmer kruəs →Every word from Proto-Vietic k-rɔːs →Every word from Vietnamese sỏi →
nội soi — Etymology, Origin & Word History | Etymology Explorer