enabler vs wet nurse

enabler

noun
  • One who gives someone else the power to behave in a certain way. 

  • One who or that which helps something to happen. 

  • One who encourages a bad habit in another (typically drug addiction) by their behaviour. 

wet nurse

noun
  • Someone who treats someone else with excessive care. 

  • A woman hired to suckle another woman's child. 

verb
  • To act as a wet nurse (in either sense). 

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