feces vs feculence

feces

noun
  • Digested waste material (typically solid or semi-solid) discharged from a human or mammal's stomach to the intestines; excrement. 

feculence

noun
  • Feculent matter; dregs, filth. 

  • The state or quality of being feculent. 

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