attest vs consort

attest

verb
  • To affirm to be correct, true, or genuine. 

  • To certify in an official capacity. 

  • To put under oath. 

  • To supply or be evidence of. 

  • To certify by signature or oath. 

consort

verb
  • To be in agreement. 

  • To associate or keep company (with). 

noun
  • The spouse of a monarch. 

  • A ship accompanying another. 

  • Association or partnership. 

  • A group or company, especially of musicians playing the same type of instrument. 

  • A husband, wife, companion or partner. 

  • An informal, usually well-publicized sexual companion of a monarch, aristocrat, celebrity, etc. 

adj
  • of a title, by virtue of one's (living) spouse; often contrasted with regnant and dowager 

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