ovation vs testimonial

ovation

noun
  • A (ceremony for the) recognition of some achievement. 

  • Prolonged enthusiastic applause. 

  • A victory ceremony of less importance than a triumph. 

verb
  • To give (someone) an ovation (prolonged enthusiastic applause). 

testimonial

noun
  • A tribute given in appreciation of someone's service etc. 

  • A statement, especially one given under oath; testimony 

  • A match played in tribute to a particular player (who sometimes receives a proportion of the gate money). 

  • A written recommendation of someone's worth or character 

adj
  • Serving as testimony. 

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