itch vs whim

itch

noun
  • A constant teasing desire or want. 

  • A sensation felt on an area of the skin that causes a person or animal to want to scratch said area. 

verb
  • To scratch or rub so as to relieve an itch. 

  • To feel itchy; to feel a need to be scratched. 

  • To cause to feel an itch. 

  • To have a constant, teasing urge; to feel strongly motivated; to want or desire something. 

whim

noun
  • A fanciful impulse, or sudden change of idea. 

  • A bird, the Eurasian wigeon. 

  • A large capstan or vertical drum turned by horse power or steam power, for raising ore or water, etc., from mines, or for other purposes 

verb
  • To be seized with a whim; to be capricious. 

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