aerify vs expiate

aerify

verb
  • To vaporize. 

  • To mix with air. 

expiate

verb
  • To wind up, bring to an end. 

  • To make amends or pay the penalty for. 

  • To purify with sacred rites. 

  • To atone or make reparation for. 

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