Sauerbier (German) comes from German sauer, from Middle High German sūr, from Old High German sūr, from Proto-West Germanic sūr, from Proto-Germanic sūraz, from Proto-Indo-European suHrós — sour, salty, bitter.
Sauerbier (German): sour beer
Definitions
sour beer
Ancestry of “Sauerbier”, step by step
Sauerbier traces back through two separate lines of ancestry.