charming vs operant

charming

noun
  • The casting of a magical charm. 

adj
  • Pleasant, charismatic. 

  • Delightful in a playful way which avoids responsibility or seriousness, as if attracting through a magical charm. 

operant

noun
  • An operative person or thing. 

  • Any of a class of behaviors that produce consequences by operating (i.e., acting) upon the environment. 

adj
  • That operates to produce an effect. 

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