Where does “ai ai” come from?

ai ai (Vietnamese) comes from Vietnamese ai, from Proto-Vietic ʔeː.

ai ai (Vietnamese): everyone, everybody

Definitions

  1. everyone, everybody

Ancestry of “ai ai”, step by step

StepLanguageWordMeaning
1Vietnameseaiwho; whoever; someone else
2Proto-Vieticʔeː—
Every word from Proto-Vietic ʔeː →Every word from Vietnamese ai →