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MAAS Family HistoryThis is an ancient Dutch-German surname which has two possible origins. Recorded in the spellings of Maas, Maase, Maass, (Dutch-German), and as Masi and Maso (Italian), and found as a patronymic or diminutive in almost all continental countries, examples being Masset (France) or Maesen (Flemish), its origins are either locational from residence by the River Maas which flows through the Low Countries, or occasionally as a nickname form of the Crusader introduced 'Thomas'. The meaning of the river name is probably 'marsh land', but this not proven.
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