Genealogy / Zuber - Is my last name Polish? [7]

Hey,

ok so my last name is Zuber and have been told that it could either be German, Jewish or Polish.
Most recently Polish people are telling me it's Polish so i just really want to know if it is. And what it means and possibly where it originated. Would be cool to find out about the origins of it and possibly stumble across some family history in the process.