sluggishness vs verve

sluggishness

noun
  • The state of economic decline, inactivity, slow or subnormal growth. 

  • The property of being sluggish, unable or unwilling to act quickly. 

verve

noun
  • Enthusiasm, rapture, spirit, or vigour, especially of imagination such as that which animates an artist, musician, or writer, in composing or performing. 

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