chivalry vs politeness

chivalry

noun
  • Courteous behaviour, especially that of men towards women. 

  • The ethical code of the knight prevalent in Medieval Europe, having such primary virtues as mercy towards the poor and oppressed, humility, honour, sacrifice, fear of God, faithfulness, courage and utmost graciousness and courtesy to ladies. 

  • Courtesy, respect and honourable conduct between opponents in wartime. 

  • A tenure of lands by knightly service. 

politeness

noun
  • An act of politeness. 

  • The quality of being polite. 

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