desensitize

verb6

1. •
   To reduce or eliminate the sensitivity of (someone) or in (something); to become insensitive.
2. •
   To render (someone) emotionally or sensationally less responsive or irresponsive, as by long or repeated exposure to something.

   • Working in an Operating Room desensitized me to the sight of blood.
3. •
   To render (a person or animal) nonreactive or insensitive to an allergen.
4. •
   To render (a photographic plate or film) less sensitive or insensitive to actinic rays of light.
5. •
   To free (someone) from the emotional charge of a neurosis or complex.
6. •
   To make non-image portions of (a lithographic stone or plate) repellent to ink.