chivalry vs masculineness

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. 

masculineness

noun
  • The state or condition of being masculine. 

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