enticement vs slush fund

enticement

noun
  • That which entices, or incites to evil; means of allurement; an alluring object 

  • The act or practice of enticing, of alluring or tempting 

slush fund

noun
  • Money that has not been hypothecated or dedicated to a particular purpose, or which is used for a different purpose than originally intended. 

  • Money stored for illegal or dishonest purposes. 

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