Where does “xứ Quảng” come from?

xứ Quảng (Vietnamese) comes from Vietnamese xứ, from French sou, from Latin solidus, from Proto-Italic soliðos, from Proto-Indo-European solh₂-i-dʰ-o-s, from Proto-Indo-European solh₂- — whole.

Ancestry of “xứ Quảng”, step by step

xứ Quảng traces back through two separate lines of ancestry.

via Vietnamese xứ

StepLanguageWordMeaning
1Vietnamesexứa land
2Frenchsousou; money; cash; cent
3Latinsolidussolid; A solidus: a Roman ~23-carat gold coin...
4Proto-Italicsoliðos
5Proto-Indo-Europeansolh₂-i-dʰ-o-sentire
6Proto-Indo-Europeansolh₂-whole

via Vietnamese quàng

StepLanguageWordMeaning
1Vietnamesequàngnonsensical, absurd; indiscriminate; to put on,...
2Chinese
Every word from Proto-Indo-European solh₂-Every word from Proto-Indo-European solh₂-i-dʰ-o-sEvery word from Proto-Italic soliðos