charm vs serenade

charm

verb
  • To seduce, persuade or fascinate someone or something. 

  • To use a magical charm upon; to subdue, control, or summon by incantation or supernatural influence. 

  • To subdue or overcome by some secret power, or by that which gives pleasure; to allay; to soothe. 

  • To protect with, or make invulnerable by, spells, charms, or supernatural influences. 

noun
  • A second-order measure of derivative price sensitivity, expressed as the instantaneous rate of change of delta with respect to time. 

  • A flock, group (especially of finches). 

  • The ability to persuade, delight or arouse admiration. 

  • An object, act or words believed to have magic power (usually carries a positive connotation). 

  • A small trinket on a bracelet or chain, etc., traditionally supposed to confer luck upon the wearer. 

  • The mixed sound of many voices, especially of birds or children. 

  • A quantum number of hadrons determined by the number of charm quarks and antiquarks. 

serenade

verb
  • To sing or play a serenade for (someone). 

noun
  • A love song that is sung directly to one's love interest, especially one performed below the window of a loved one in the evening. 

  • An instrumental composition in several movements. 

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