Where does “đôi khi” come from?

đôi khi (Vietnamese) comes from Vietnamese khí, from Proto-Vietic kʰih.

đôi khi (Vietnamese): sometimes; occasionally

Definitions

  1. sometimes; occasionally

Ancestry of “đôi khi”, step by step

đôi khi traces back through two separate lines of ancestry.

via Vietnamese khí

StepLanguageWordMeaning
1VietnamesekhíClipping of không khí; gas; chi
2Proto-Vietickʰih—

via Vietnamese đôi

StepLanguageWordMeaning
1Vietnameseđôidouble
2Middle Chinese對—
Every word from Proto-Vietic kʰih →Every word from Vietnamese khí →