Where does “chữ cái” come from?

chữ cái (Vietnamese) comes from Vietnamese chữ, from Proto-Vietic cuːʔ, from Proto-Mon-Khmer cuuʔ — grandchild.

chữ cái (Vietnamese): a letter

Definitions

  1. a letter

Ancestry of “chữ cái”, step by step

chữ cái traces back through two separate lines of ancestry.

via Vietnamese chữ

StepLanguageWordMeaning
1Vietnamesechữalphabet, writing system, script; letter,...
2Proto-Vieticcuːʔgrandchild; father's younger brother
3Proto-Mon-Khmercuuʔgrandchild

via Vietnamese cái

StepLanguageWordMeaning
1Vietnamesecáia thing; a whatsit; the solid bits of a broth;...
2Proto-Vietic-keːʔwoman, female

Words derived from “chữ cái

Every word from Proto-Mon-Khmer cuuʔEvery word from Proto-Vietic cuːʔEvery word from Vietnamese chữ