Where does “nấm rơm” come from?

nấm rơm (Vietnamese) comes from Vietnamese năm, from Proto-Chamic *nam, from Proto-Malayo-Polynesian ənəm, from Proto-Austronesian ənəm, from Proto-Austroasiatic *ənəm.

nấm rơm (Vietnamese): straw mushroom

Definitions

  1. straw mushroom

Ancestry of “nấm rơm”, step by step

nấm rơm traces back through two separate lines of ancestry.

via Vietnamese năm

StepLanguageWordMeaning
1Vietnamesenămfive; a year
2Proto-Chamic*namsix
3Proto-Malayo-Polynesianənəmsix
4Proto-Austronesianənəmsix
5Proto-Austroasiatic*ənəm

via Vietnamese rơm

StepLanguageWordMeaning
1Vietnameserơmstraw; a straw
Every word from Proto-Austroasiatic *ənəm