headshrink vs shrinker

headshrink

noun
  • A psychiatrist. 

shrinker

noun
  • A psychiatrist; a head-shrinker. 

  • Something that makes something else shrink. 

  • One who shrinks or recoils. 

  • Something that itself shrinks. 

  • A sock-like article used to compress a stump remaining after amputation. 

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