-y vs ex-

-y

suffix
  • Added to nouns and adjectives to form adjectives meaning “having the quality of”, either “involving the referent” or “analogous to it”. 

  • Added to verbs to form adjectives meaning "inclined to". 

  • Used in the name of some locations which end in -ia in Latin. 

  • Forming abstract nouns denoting a state, condition, or quality. 

ex-

prefix
  • former, but still living (almost always used with a hyphen) 

  • out of 

  • outside 

  • Lacking. 

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