bondage vs custody

bondage

noun
  • The state of being enslaved or the practice of slavery. 

  • The practice of physically restraining people for sexual pleasure, such as by tying up or shackling. 

  • Applied to clothing with many buckles, zips, etc., associated with punk and goth subcultures. 

  • The state of lacking freedom; constraint. 

custody

noun
  • The state of being imprisoned or detained, usually pending a trial. 

  • Temporary possession or care of somebody else's property. 

  • The legal right to take care of something or somebody, especially children. 

  • An area under the jurisdiction of a custos within the Order of Friars Minor. 

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