Where does “chim ruồi” come from?

chim ruồi (Vietnamese) comes from Vietnamese ruồi, from Proto-Vietic m-rɔːj, from Proto-Austroasiatic *roaj — fly (insect).

chim ruồi (Vietnamese): a hummingbird

Definitions

  1. a hummingbird

Ancestry of “chim ruồi”, step by step

chim ruồi traces back through two separate lines of ancestry.

via Vietnamese ruồi

StepLanguageWordMeaning
1Vietnameseruồia fly
2Proto-Vieticm-rɔːj—
3Proto-Austroasiatic*roajfly (insect)

via Vietnamese chìm

StepLanguageWordMeaning
1Vietnamesechìmto sink
2Proto-Vietic-ciːmbird
3Proto-Mon-Khmercimbird
Every word from Proto-Austroasiatic *roaj →Every word from Proto-Vietic m-rɔːj →Every word from Vietnamese ruồi →