fetid vs purulent

fetid

adj

  • Foul-smelling, stinking. 

noun

  • The foul-smelling asafoetida plant, or its extracts. 

purulent

adj

  • Leaking or seeping pus. 

  • Consisting of pus. 

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