Druid vs ovate

Druid

noun
  • A member of a benefit society founded in 1781, the Ancient Order of Druids. 

ovate

noun
  • A member at a certain grade of the Order of Bards, Ovates and Druids, a neo-druidism order based in England. 

  • An Irish bard. 

  • An egg-shaped hand axe. 

  • A modern-day bard of a gorsedd, especially one acknowledged at an eisteddfod. 

adj
  • With the broadest extremity near the base. 

  • Shaped like an egg. 

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