clear-out vs dereliction

clear-out

noun
  • The act of emptying a room or space. 

  • A semicircular sweep with the ball grasped firmly in both hands. 

dereliction

noun
  • The act of abandoning something, or the state of being abandoned. 

  • Land gained from the water by a change of water-line. 

  • Willful neglect of one's duty. 

How often have the words clear-out and dereliction occurred in a corpus of books? (source: Google Ngram Viewer )