Fassbier (German) comes from German bier, from Middle High German bier, from Old High German bior, from Proto-West Germanic beuʀ, from Proto-Germanic beuzą, from Proto-Indo-European bʰews- — dross, sediment; dross, sediment, brewer's yeast.
Fassbier (German): draft beer, draught (beer)
Definitions
draft beer, draught (beer)
Ancestry of “Fassbier”, step by step
Fassbier traces back through two separate lines of ancestry.