protestation vs quibble

protestation

noun
  • A declaration in common-law pleading, by which the party interposes an oblique allegation or denial of some fact, protesting that it does or does not exist, and at the same time avoiding a direct affirmation or denial. 

  • a formal solemn objection or other declaration 

quibble

noun
  • An objection or argument based on an ambiguity of wording or similar trivial circumstance; a minor complaint. 

verb
  • To contest, especially some trivial issue in a petty manner. 

  • To complain or argue in a trivial or petty manner. 

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