babysitter vs babysitting

babysitter

noun
  • A person who cares for one or more babies or children for a short period of time in place of their legal guardians. 

babysitting

noun
  • The work of a babysitter; the care of children in the temporary absence of their parents or guardians. 

  • Hypernym: childminding 

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