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Family name origins & meanings
- North German : from a short form of the personal name Tancmar, composed of the Germanic thank ‘thought’ + māri, mēri ‘famous’.
- North German : habitational name from Tamm in southern Germany or Thamm, Damm(e) in northern Germany. The place names may derive from the personal name (see 1) or from Middle High German tam ‘dam’, ‘dike’.