fitted vs fixed

fitted

verb
  • simple past tense of fit ("to tailor, to change size") 

  • simple past tense of fit (other senses) 

adj
  • Incorporating all of the fittings into connected units. 

fixed

adj
  • Of sound, recorded on a permanent medium. 

  • Resolved; corrected. 

  • Surgically rendered infertile (spayed, neutered or castrated). 

  • Not changing, not able to be changed, staying the same. 

  • Repaired 

  • Attached; affixed. 

  • Chemically stable. 

  • Supplied with what one needs. 

  • Stationary. 

  • Rigged; fraudulently prearranged. 

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