Where does “hết nước” come from?

hết nước (Vietnamese) comes from Vietnamese nước, from Proto-Vietic ɗaːk, from Proto-Mon-Khmer ɗaak — water; liquid; The sense of "river, stream" that...

hết nước (Vietnamese): to be at the end of one's tether; to be helpless

Definitions

  1. to be at the end of one's tether; to be helpless

Ancestry of “hết nước”, step by step

hết nước traces back through two separate lines of ancestry.

via Vietnamese nước

StepLanguageWordMeaning
1Vietnamesenướcwater; liquid; fluid; the liquid part of a broth
2Proto-Vieticɗaːkwater, liquid
3Proto-Mon-Khmerɗaakwater; liquid; The sense of "river, stream" that...

via Vietnamese hết

StepLanguageWordMeaning
1Vietnamesehếtto finish, to end, to expire, to come to an end;...
2Proto-Vieticheːtfinished
3Proto-Mon-Khmerʔət—
Every word from Proto-Mon-Khmer ɗaak →Every word from Proto-Vietic ɗaːk →Every word from Vietnamese nước →