decimation vs hecatomb

decimation

noun
  • The killing or destruction of any large portion of a population. 

  • A digital signal-processing technique for reducing the number of samples in a discrete-time signal; downsampling 

  • The creation of a new sequence comprising only every nth element of a source sequence. 

  • A tithe or the act of tithing. 

  • The killing or punishment of every tenth person, usually by lot. 

hecatomb

noun
  • Any great sacrifice; a great number of people, animals or things, especially as sacrificed or destroyed; a large amount. 

  • A great feast and public sacrifice to the gods, originally of a hundred oxen. 

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