captor vs catcher

captor

noun
  • One who catches or has caught or captured something or someone. 

  • One who is holding a captive or captives. 

catcher

noun
  • Someone or something that catches. 

  • The player that squats behind home plate and receives the pitches from the pitcher 

  • The bottom partner in a homosexual relationship or sexual encounter between two men. 

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