Where does “đường phèn” come from?

đường phèn (Vietnamese) comes from Vietnamese Đường, from Proto-Southwestern Tai daːŋᴬ², from Middle Chinese 唐.

đường phèn (Vietnamese): rock sugar

Definitions

  1. rock sugar

Ancestry of “đường phèn”, step by step

đường phèn traces back through two separate lines of ancestry.

via Vietnamese Đường

StepLanguageWordMeaning
1VietnameseĐườngrelated to Tang
2Proto-Southwestern Taidaːŋᴬ²road; way
3Middle Chinese唐—

via Vietnamese phèn

StepLanguageWordMeaning
1Vietnamesephènalum
2Chinese礬—
Every word from Middle Chinese 唐 →Every word from Proto-Southwestern Tai daːŋᴬ² →Every word from Vietnamese Đường →