Where does “chí thiết” come from?

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

chí thiết (Vietnamese): intimate; very close; deeply familiar

Definitions

  1. intimate; very close; deeply familiar

Ancestry of “chí thiết”, step by step

chí thiết 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 thiết

StepLanguageWordMeaning
1Vietnamesethiếtto be pressing, urgent; to be near, close; to...
2Middle Chinese切to cut
Every word from Proto-Mon-Khmer ciiʔ →Every word from Proto-Bahnaric ciː →Every word from Vietnamese chí →