disintegration vs labefaction

disintegration

noun
  • A process by which anything disintegrates. 

  • The wearing away or falling to pieces of rocks or strata, produced by atmospheric action, frost, ice, etc. 

  • The process of radioactive decay. 

  • The condition of anything which has disintegrated. 

  • The radioactive decay of a single atom. 

labefaction

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

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