Where does “chỉ nha khoa” come from?

chỉ nha khoa (Vietnamese) comes from Vietnamese chí, from Proto-Bahnaric ciː, from Proto-Mon-Khmer ciiʔ — louse.

chỉ nha khoa (Vietnamese): a dental floss

Definitions

  1. a dental floss

Ancestry of “chỉ nha khoa”, step by step

chỉ nha khoa traces back through two separate lines of ancestry.

via Vietnamese chí

StepLanguageWordMeaning
1Vietnamesechíwill; spirit; Central Vietnam and Southern...
2Proto-Bahnaricciːhead louse
3Proto-Mon-Khmerciiʔlouse

via Vietnamese nha khoa

StepLanguageWordMeaning
1Vietnamesenha khoadentistry
Every word from Proto-Mon-Khmer ciiʔ →Every word from Proto-Bahnaric ciː →Every word from Vietnamese chí →