disband vs discontinue

disband

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

discontinue

verb
  • To interrupt the continuance of; to put an end to, especially as regards commercial productions; to stop producing, making, or supplying. 

  • To consciously cease the ingestion or administration of (a pharmaceutical drug). 

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