oomph vs zazz

oomph

noun

  • Strength, power, passion or effectiveness; clout. 

  • A bassy grunting or thudding sound. 

  • Sex appeal. 

verb

  • To produce a bassy grunting or thudding sound. 

zazz

noun

  • Energetic charisma; zest; vitality. 

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