mass murder vs wasting

mass murder

noun
  • The killing of a large number of people over a short period of time. 

wasting

noun
  • The act by which something is laid waste; destruction. 

  • Gradual deterioration or wasting away. 

adj
  • Causing a waste, or wasting away; causing pronounced loss of body mass. 

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