Where does “đi ngoài” come from?

đi ngoài (Vietnamese) comes from Vietnamese đi, from Proto-Vietic tiː — to go.

đi ngoài (Vietnamese): to do number two; to relieve oneself; to move one's bowels

Definitions

  1. to do number two; to relieve oneself; to move one's bowels

Ancestry of “đi ngoài”, step by step

đi ngoài traces back through two separate lines of ancestry.

via Vietnamese đi

StepLanguageWordMeaning
1Vietnameseđito go; to wear footwear; used sentence-finally to...
2Proto-Vietictiːto go

via Vietnamese ngoài

StepLanguageWordMeaning
1Vietnamesengoàioutside, exterior; outside, out of; in, inside
2Middle Chinese外—
Every word from Proto-Vietic tiː →Every word from Vietnamese đi →