backslider vs grundy

backslider

noun
  • A recidivist; one who backslides, especially in a religious sense; an apostate. 

  • She married him thinking to change his ways, and for a while he got religion, but he was ever a backslider; she soon began finding bottles stashed about the house. 

grundy

noun
  • A narrow-minded person or group that is overly concerned with censoring or criticizing personal conduct. 

  • Granulated or shotted pig iron. 

  • A pair of underpants 

adj
  • Overly concerned with censoring or criticizing personal conduct. 

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