feculence vs putrescence

feculence

noun

  • Feculent matter; dregs, filth. 

  • The state or quality of being feculent. 

putrescence

noun

  • The condition of being putrid; decay 

  • Putrid matter 

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