residue vs sweepings

residue

noun
  • The substance that remains after evaporation, distillation, filtration or any similar process. 

  • A molecule that is released from a polymer after bonds between neighbouring monomers are broken, such as an amino acid in a polypeptide chain. 

  • Whatever property or effects are left in an estate after payment of all debts, other charges and deduction of what is specifically bequeathed by the testator. 

  • Whatever remains after something else has been removed. 

  • A form of complex number, proportional to the contour integral of a meromorphic function along a path enclosing one of its singularities. 

sweepings

noun
  • Material that is swept up. 

How often have the words residue and sweepings occurred in a corpus of books? (source: Google Ngram Viewer )