apt vs fitted

apt

adj
  • Ready; especially fitted or qualified (to do something); quick to learn. 

  • Suitable; appropriate; fit or fitted; suited. 

  • Having a habitual tendency; habitually liable or likely; disposed towards. 

noun
  • An apartment; a flat. 

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. 

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