cryptozoic vs significant

cryptozoic

adj
  • Hidden (especially in the soil); not easily visible. 

  • Living in a cavity or small cave. 

  • Relating to a cryptozoite. 

significant

adj
  • Having a covert or hidden meaning. 

  • Reasonably large in number or amount. 

  • Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related). 

  • Having a noticeable or major effect. 

  • Signifying something; carrying meaning. 

noun
  • That which has significance; a sign; a token; a symbol. 

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