fervent vs monomaniacal

fervent

adj
  • Exhibiting particular enthusiasm, zeal, conviction, persistence, or belief. 

  • Having or showing emotional warmth, fervor, or passion. 

  • Glowing, burning, very hot. 

monomaniacal

adj
  • Fanatical, or obsessed with one cause or idea to the exclusion of other concerns. 

  • Of or relating to a monomaniac. 

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