disjoint vs stop-start

disjoint

adj
  • Not smooth or continuous; disjointed. 

  • Of two or more sets, having no members in common; having an intersection equal to the empty set. 

verb
  • To break the natural order and relations of; to make incoherent. 

  • To render disjoint; to remove a connection, linkage, or intersection. 

stop-start

adj
  • Intermittent; starting and stopping with regularity. 

How often have the words disjoint and stop-start occurred in a corpus of books? (source: Google Ngram Viewer )