buoyancy vs verve

buoyancy

noun
  • Resilience or cheerfulness. 

  • The ability of an object to stay afloat in a fluid. 

  • The upward force on a body immersed or partly immersed in a fluid. 

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 buoyancy and verve occurred in a corpus of books? (source: Google Ngram Viewer )