Lucifer vs Old Gentleman

Lucifer

name
  • Satan, the Devil. 

  • The planet Venus as the daystar. 

  • The King of Babylon who was compared to the planet Venus in first the Wycliffe version then the King James Version of Isaiah 14:12; it is unclear whether this verse refers to a specific king or to a representation of the entire line of kings of Babylon. 

Old Gentleman

name
  • The Devil. 

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