avouch vs intimate

avouch

verb
  • To acknowledge deliberately; to admit; to confess; to sanction. 

  • To declare freely and openly; to assert. 

  • To confirm or verify, to affirm the validity of. 

  • To appeal to; to cite or claim as authority. 

intimate

verb
  • To suggest or disclose (something) discreetly. 

  • To notify. 

adj
  • Pertaining to details that require great familiarity to know. 

  • Closely acquainted; familiar. 

  • Very finely mixed. 

  • Of or involved in a sexual relationship. 

  • Personal; private. 

noun
  • A very close friend. 

  • Women's underwear, sleepwear, or lingerie, especially offered for sale in a store. 

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