nonplus vs perplexion

nonplus

noun
  • A state of bewilderment or perplexity. 

verb
  • To bewilder or perplex (someone); to confound, to flummox. 

perplexion

noun
  • Condition or state of being perplexed; perplexity. 

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