itch vs sensitize

itch

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

  • 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. 

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. 

sensitize

verb
  • To make (someone or something) sensitive or responsive to certain stimuli. 

  • To render capable of being acted on by actinic rays of light. 

  • To make (someone) increasingly aware of, in a concerned or sensitive way. 

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