feverous vs sultry

feverous

adj
  • having the nature of fever 

  • having a tendency to produce fever 

  • affected with fever or ague 

sultry

adj
  • Very hot and dry; torrid. 

  • Hot and humid. 

  • Sexually enthralling. 

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