disavow vs fess

disavow

verb
  • To deny; to show the contrary of; to deny legitimacy or achievement of any kind. 

  • To strongly and solemnly refuse to own or acknowledge; to deny responsibility for, approbation of, and the like. 

fess

noun
  • A horizontal band across the middle of the shield. 

adj
  • Of animals, bad-tempered, fierce. 

  • Lively; active; strong. 

  • Proud; conceited. 

verb
  • To confess; to admit. 

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