auto- vs con-

auto-

prefix
  • Reflexive, regarding or to oneself 

  • relating to cars or the driving of cars 

  • automatic 

con-

prefix
  • related to conlangs, conworlds, etc. 

  • constructed, artificial 

  • used with certain words to intensify their meaning 

  • used with certain words to add a notion similar to those conveyed by with, together, or joint 

  • hypothetical, fictional 

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