endorse vs lecture

endorse

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

  • To give an endorsement. 

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

lecture

noun
  • a class that primarily consists of a (weekly or other regularly held) lecture (as in sense 1) 

  • A berating or scolding. 

  • A spoken lesson or exposition, usually delivered to a group. 

verb
  • To preach, to berate, to scold. 

  • To teach (somebody) by giving a speech on a given topic. 

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