guarding vs safekeeping

guarding

noun
  • Tensing of the muscles, especially of the abdomen, in order to minimise the movement and agitation to the internal inflamed organs. 

safekeeping

noun
  • the responsibility of a guardian 

  • the act of keeping something safe; protection from harm, damage, loss, or theft 

  • not returning checks; a system wherein banks keep checks (cheques) that people write, rather than returning them to the account holder with their monthly statement. 

  • the storage of assets in a protected area 

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