Where does “cá đù” come from?

cá đù (Vietnamese) comes from Vietnamese cá, from French quart, from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

cá đù (Vietnamese): croaker, drumfish

Definitions

  1. croaker, drumfish

Ancestry of “cá đù”, step by step

cá đù traces back through two separate lines of ancestry.

via Vietnamese cá

StepLanguageWordMeaning
1Vietnamesecáfish; to bet
2Frenchquartfourth; quarter; shift
3Latinquārtusfourth
4Proto-Indo-Europeankʷeturtos—
5Proto-Indo-Europeankʷetwóresfour
6Proto-Indo-Europeankʷe-and

via Vietnamese dù

StepLanguageWordMeaning
1Vietnamesedùumbrella; parachute; even if
2Proto-Vieticjɨh—
Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Indo-European kʷeturtos →