approval vs demur

approval

noun
  • Something mailed by a seller to a collector to match their stated interests; the collector can approve of or return the item. 

  • An expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing, or event meets requirements. 

  • An expression of favorable acceptance and encouragement; a compliment that also condones. 

demur

noun
  • An act of hesitation as to proceeding; a scruple; also, a suspension of action or decision; a pause, a stop. 

verb
  • To interpose a demurrer. 

  • To delay; to pause; to suspend proceedings or judgment in view of a doubt or difficulty; to hesitate; to put off the determination or conclusion of an affair. 

  • To scruple or object; to take exception; to oppose; to balk 

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