delicacy vs diplomacy

delicacy

noun
  • Tact and propriety; the need for such tact. 

  • Something appealing, usually a pleasing food, especially a choice dish of a certain culture suggesting rarity and refinement. 

  • The quality of being delicate. 

  • Refinement in taste or discrimination. 

  • Fineness or elegance of construction or appearance. 

  • Frailty of health or fitness. 

diplomacy

noun
  • Tact and subtle skill in dealing with people so as to avoid or settle hostility. 

  • The art and practice of conducting international relations by negotiating alliances, treaties, agreements etc., bilaterally or multilaterally, between states and sometimes international organizations, or even between polities with varying status, such as those of monarchs and their princely vassals. 

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