in- vs non-

in-

prefix
  • Added to nouns to mean lacking or without 

  • Used with certain words to reverse their meaning 

  • in, into 

  • in, into, towards, within. 

  • Added to adjectives to mean not 

non-

prefix
  • Used in the sense of no or none, to show lack of or failure to perform; or in the sense of not, to negate the meaning of the word to which it is prefixed. 

  • prevocalic form of nona- 

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