ex- vs next

ex-

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

  • out of 

  • outside 

  • Lacking. 

next

det
  • Closest in the future, or closest but one if the closest is very soon; of days, sometimes thought to specifically refer to the instance closest to seven days (one week) in the future. 

  • Denotes the one immediately following the current or most recent one. 

adv
  • In a time, place, rank or sequence closest or following. 

  • On the first subsequent occasion. 

  • So as to follow in time or sequence something previously mentioned. 

noun
  • The one that follows after this one. 

adj
  • Nearest in order, succession, or rank; immediately following (or sometimes preceding) in order. 

  • Nearest in place or position, having nothing similar intervening; adjoining. 

  • Nearest in relationship. (See also next of kin.) 

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