decollation vs strangulation

decollation

noun
  • The act of beheading someone. 

  • The festival of the Baptist, celebrated on 29 August. 

  • A picture of a decapitation, especially of the head of St John the Baptist on a charger. 

strangulation

noun
  • The act of strangling or the state of being strangled. 

  • The constriction of the air passage or other body part that cuts off the flow of a fluid. 

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