The probable origin of the surname RUBBERT, as with Roberts, or Robarts or Robins is that it is derived from Robert.
Robert is a Teutonic Personal name of great antiquity and is frequently found in Domesday Book at ARobertus@. The Normans brought the French (Welch form word) Robert "fame, bright" derived from the Old German Hrodebert to England at the time of the Conquest. Rob, Hob, and Dob were pet forms of the name, and from Rob a number of surnames were derived -- including the English Patronymic names Robinson, Roberts and Robertson. Other versions are Robart (English), Robart, Robard, Rebert, Rospars (French), Ropartz (Brittany), Flobert, Flaubert (also French from a variation), RUBBERT, Robbert, Ropert, Ruppert (Low German). Cognates include Roubert, Roubeix, (Provencal), Roberti, Roberto, Ruberti, Ruberto, Ruperto, Luberti, Luberto, Luparti, Luparto (Italian), Roberto (Portuguese), Rupprecht, Rupprecht, Rauprich (German), and Robberecht (Flemish).
In 1970 (American Surnames by C. Smith) Roberts was ranked 34th in most common surnames in the U.S.
Pete and Carol Peterson write:
"...We are working with two distinct RUBBERT families. One of these two was originally named ROBBERT, but shortly after their arrival changed their name to RUBBERT, thereby confounding researchers ever since....
You can put us down a bonafide RUBBERT and ZILSKE researchers...."
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