Where does “dấu mềm” come from?

dấu mềm (Vietnamese) comes from Vietnamese dấu, from Proto-Vietic k-toːʔ — trace, footprint.

dấu mềm (Vietnamese): tilde diacritical mark indicating palatalization in Spanish

Definitions

  1. tilde diacritical mark indicating palatalization in Spanish

Ancestry of “dấu mềm”, step by step

dấu mềm traces back through two separate lines of ancestry.

via Vietnamese dấu

StepLanguageWordMeaning
1Vietnamesedấumark, sign; diacritic; tone
2Proto-Vietick-toːʔtrace, footprint

via Vietnamese mềm

StepLanguageWordMeaning
1Vietnamesemềmsoft
Every word from Proto-Vietic k-toːʔ