adjure vs ask

adjure

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

  • To issue a formal command. 

ask

verb
  • To request or petition; usually with for. 

  • To interrogate or enquire of (a person). 

  • To put forward (a question) to be answered. 

  • To invite. 

  • To take (a person's situation) as an example. 

  • To publish in church for marriage; said of both the banns and the persons. 

  • To request permission to do something. 

  • To require, demand, claim, or expect, whether by way of remuneration or return, or as a matter of necessity. 

  • To request (information, or an answer to a question). 

noun
  • An act or instance of asking. 

  • An asking price. 

  • A message sent to a blog on social networking platform Tumblr, which can be publicly posted and replied to by the recipient. 

  • An eft; newt. 

  • A lizard. 

  • Something asked or asked for. 

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