jitterbug vs worrier

jitterbug

noun
  • A nervous or jittery person. 

  • An uptempo jazz or swing dance which embellishes on the two-step pattern and frequently incorporates acrobatic style swing steps. 

  • A jazz musician or aficionado. 

  • Synonym of diddley bow (“type of stringed instrument”) 

verb
  • To dance the jitterbug. 

worrier

noun
  • A person who causes worry in others. 

  • A person who worries a great deal, especially unnecessarily. 

  • An animal that seizes or shakes another by the throat. 

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