Where does “biouac” come from?

biouac (French) comes from Alemannic German Biiwacht, from Alemannic German bii- — by-.

Ancestry of “biouac”, step by step

StepLanguageWordMeaning
1Alemannic GermanBiiwachtreinforcements for a guard, city watch, etc
2Alemannic Germanbii-by-
Every word from Alemannic German bii- →Every word from Alemannic German Biiwacht →
biouac — Etymology, Origin & Word History | Etymology Explorer