closeness vs vacillation

closeness

noun
  • The shortest path between two vertices in a graph 

  • The state of being close (all senses) 

  • The state of being friends 

  • The state of being secretive 

  • The state of being mean or stingy 

vacillation

noun
  • Changing location by moving back and forth. 

  • Indecision in speech or action. 

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