Where does “vira-casaca” come from?

vira-casaca (Portuguese) comes from Portuguese virar, from Vulgar Latin virare, from Latin gȳrāre, from Latin gȳrus, from Ancient Greek γῦρος, from Ancient Greek μίτρα, from Proto-Indo-European mey- — to strengthen; to bind; to change, exchange.

vira-casaca (Portuguese): turncoat a traitor; one who changes sides

Definitions

  1. turncoat a traitor; one who changes sides

Ancestry of “vira-casaca”, step by step

vira-casaca traces back through two separate lines of ancestry.

via Portuguese virar

StepLanguageWordMeaning
1Portuguesevirarto turn or bend; to upset or topple; to capsize
2Vulgar Latinvirare
3Latingȳrāre
4Latingȳruscircle
5Ancient Greekγῦροςring, circle
6Ancient GreekμίτραA metal guard worn round the waist; A maiden's...
7Proto-Indo-Europeanmey-to strengthen; to bind; to change, exchange

via Portuguese casaca

StepLanguageWordMeaning
1Portuguesecasacadress coat
2Frenchcasaqueblouse; jersey
3Italiancasaccacoat, jacket
Every word from Proto-Indo-European mey-Every word from Ancient Greek μίτραEvery word from Ancient Greek γῦρος