nous vs perspicacity

nous

noun
  • Common sense; practical intelligence. 

  • The mind or intellect, reason, both rational and emotional 

  • In Neoplatonism, the divine reason, regarded as first divine emanation. 

  • The "mind-set" of a society, culture, or group -- as in Homer's use in the third verse of the Odyssey. 

perspicacity

noun
  • Acute discernment or understanding; insight. 

  • The human faculty or power to mentally grasp or understand clearly. 

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