Where does “áo nậu” come from?

áo nậu (Vietnamese) comes from Vietnamese áo, from Proto-Vietic ʔaːwʔ, from Proto-Mon-Khmer ʔaawʔ — upper garment.

áo nậu (Vietnamese): trimmed ceremonial garment worn in processions

Definitions

  1. trimmed ceremonial garment worn in processions

Ancestry of “áo nậu”, step by step

áo nậu traces back through two separate lines of ancestry.

via Vietnamese áo

StepLanguageWordMeaning
1Vietnameseáoa top; an outfit
2Proto-Vieticʔaːwʔ—
3Proto-Mon-Khmerʔaawʔupper garment

via Vietnamese nậu

StepLanguageWordMeaning
1Vietnamesenậuband; gang; bunch
Every word from Proto-Mon-Khmer ʔaawʔ →Every word from Proto-Vietic ʔaːwʔ →Every word from Vietnamese áo →