adjure vs counsel

adjure

verb
  • To earnestly appeal to or advise; to charge solemnly. 

  • To issue a formal command. 

counsel

verb
  • To give advice, especially professional advice, to (somebody). 

  • To recommend (a course of action). 

noun
  • A lawyer, as in King's Counsel (KC) or Queen's Counsel (QC). 

  • The exchange of opinions and advice especially in legal issues; consultation. 

  • Exercise of judgment; prudence. 

  • Advice; guidance. 

  • Deliberate purpose; design; intent; scheme; plan. 

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