Where does “tiếng Nam” come from?

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

tiếng Nam (Vietnamese): the Vietnamese language

Definitions

  1. the Vietnamese language

Ancestry of “tiếng Nam”, step by step

tiếng Nam 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 tiếng

StepLanguageWordMeaning
1Vietnamesetiếngvoice; sound; language
2Middle Chinese聲sound, voice
Every word from Proto-Austroasiatic *ənəm →Every word from Proto-Austronesian ənəm →Every word from Proto-Malayo-Polynesian ənəm →