befoul vs opprobriate

befoul

verb
  • To stain or mar (for example with infamy or disgrace). 

  • To entangle or run against so as to impede motion. 

  • To make foul; to soil; to contaminate, pollute. 

  • To defecate on, to soil with excrement. 

opprobriate

verb
  • To express opprobrium for or to view with opprobrium; to scorn. 

adj
  • Expressing opprobrium; disparaging. 

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