Where does “lẽ phải” come from?

lẽ phải (Vietnamese) comes from Vietnamese phải, from Chinese 派, from English Pi, from Ancient Greek πῖ, from Ancient Greek πεῖ, from Proto-Semitic pay- — the mouth.

lẽ phải (Vietnamese): the right thing; what is considered rational and reasonable

Definitions

  1. the right thing; what is considered rational and reasonable

Ancestry of “lẽ phải”, step by step

lẽ phải traces back through two separate lines of ancestry.

via Vietnamese phải

StepLanguageWordMeaning
1Vietnamesephảiright; correct; obverse
2Chinese
3EnglishPiThe sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek
4Ancient GreekπῖAlternative form of πεῖ
5Ancient Greekπεῖpi, the name for the sixteenth letter Π, π of the...
6Proto-Semiticpay-the mouth

via Vietnamese lễ

StepLanguageWordMeaning
1Vietnameselễbribe; offering; festival, festive day, holiday;...
2Proto-Vietick-lɛː
Every word from Proto-Semitic pay-
lẽ phải — Etymology, Origin & Word History | Etymology Explorer