clear-out vs relinquishment

clear-out

noun

  • The act of emptying a room or space. 

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

relinquishment

noun

  • The act of relinquishing something. 

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