citation vs commendation

citation

noun
  • A commendation in recognition of some achievement, or a formal statement of an achievement. 

  • The act of citing a passage from a text, or from another person, using the exact words of the original text or speech and giving credit to the original by referencing. 

  • A quotation with attached bibliographical details demonstrating the use of a particular lexical item in a dictionary, especially a dictionary on historical principles. 

  • An entry in a list of sources from which information was taken, typically following a prescribed bibliographical style; a reference. 

  • An official summons or notice given to a person to appear. 

  • Enumeration; mention. 

  • A reference to decided cases, or books of authority, to prove a point in law. 

  • The passage or words quoted; a quotation. 

  • The paper containing such summons or notice. 

commendation

noun
  • The act of commending; praise; favorable representation in words; recommendation. 

  • That which is the ground of approbation or praise. 

  • A message of affection or respect; compliments; greeting. 

  • An award or recognition for performance; a medal. 

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