devastation vs labefaction

devastation

noun
  • The act of devastating, or the state of being devastated; a laying waste. 

  • Waste or misapplication of the assets of a deceased person by an executor or administrator; devastavit. 

labefaction

noun
  • The act of shaking or weakening or the resulting state; overthrow, ruination. 

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