demurrer vs maintaining

demurrer

noun
  • A motion by a party to an action, for the immediate or summary judgment of the court on the question, whether, assuming the truth of the matter alleged by the opposite party, it is sufficient in law to sustain the action or defense, and hence whether the party resting is bound to answer or proceed further. 

  • Someone who demurs. 

maintaining

noun
  • The act of doing maintenance. 

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