Where does “rong biển” come from?

rong biển (Vietnamese) comes from Vietnamese rộng, from Proto-Vietic roːŋʔ.

rong biển (Vietnamese): seaweed

Definitions

  1. seaweed

Ancestry of “rong biển”, step by step

rong biển traces back through two separate lines of ancestry.

via Vietnamese rộng

StepLanguageWordMeaning
1Vietnameserộnghaving lots of space, or spanning across great...
2Proto-Vieticroːŋʔ

via Vietnamese biển

StepLanguageWordMeaning
1Vietnamesebiểnsea; ocean; sea; sign; signboard; placard; title...
Every word from Proto-Vietic roːŋʔEvery word from Vietnamese rộng