Where does “rắn nước” come from?

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

rắn nước (Vietnamese): Colubridae

Definitions

  1. Colubridae

Ancestry of “rắn nước”, step by step

rắn 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 rắn

StepLanguageWordMeaning
1Vietnameserắna non-constricting snake, as opposed to a trăn;...
2Proto-Vieticm-rəɲʔbody louse
3Proto-Mon-Khmer(d)mrəɲʔbody louse
Every word from Proto-Mon-Khmer ɗaak