endorse vs permit

endorse

verb
  • To express support or approval, especially officially or publicly. 

  • To report (a symptom); to describe. 

  • To write one's signature on the back of a cheque, or other negotiable instrument, when transferring it to a third party, or cashing it. 

  • To give an endorsement. 

noun
  • A diminutive of the pale, usually appearing in pairs on either side of a pale. 

permit

verb
  • To grant formal authorization for (something). 

  • To allow (something) to happen, to give permission for. 

  • To allow for, to make something possible. 

  • To allow, to admit (of). 

  • To attempt to obtain or succeed in obtaining formal authorization for (something). 

  • To allow (someone) to do something; to give permission to. 

noun
  • A pompano of the species Trachinotus falcatus. 

  • An artifact or document rendering something allowed or legal. 

  • A learner's permit. 

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