disband vs disconnect

disband

verb
  • To break up or (cause to) cease to exist; to disperse. 

disconnect

verb
  • Of a person, to become detached or withdrawn. 

  • To sever or interrupt a connection. 

  • To remove the connection between an appliance and an electrical power source. 

noun
  • A switch used to isolate a portion of an electrical circuit. 

  • A lack of connection or accord; a mismatch. 

  • The deliberate severing of ties with family, friends, etc. considered antagonistic towards Scientology. 

  • A break or interruption in an existing connection, continuum, or process; disconnection. 

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