Where does “hình thoi” come from?

hình thoi (Vietnamese) comes from Vietnamese thối, from Proto-Chamic *ʔadhɛ̃y, from Proto-Malayo-Polynesian daqih, from Proto-Austronesian daqiS — forehead.

hình thoi (Vietnamese): rhombus

Definitions

  1. rhombus

Ancestry of “hình thoi”, step by step

hình thoi traces back through two separate lines of ancestry.

via Vietnamese thối

StepLanguageWordMeaning
1Vietnamesethốirotten; fetid, putrid, stinking, foul-smelling;...
2Proto-Chamic*ʔadhɛ̃yforehead
3Proto-Malayo-Polynesiandaqihforehead
4Proto-AustronesiandaqiSforehead

via Vietnamese hình

StepLanguageWordMeaning
1Vietnamesehìnhimage; a figure or a silhouette; a photo; a...
2Chinese型—
Every word from Proto-Austronesian daqiS →Every word from Proto-Malayo-Polynesian daqih →Every word from Proto-Chamic *ʔadhɛ̃y →