coinciding vs divergent

coinciding

noun
  • Act or situation by which things coincide; coincidence. 

divergent

adj
  • Causing divergence of rays. 

  • Disagreeing from something given; differing. 

  • (said of a sequence or series) Diverging; not approaching a limit. 

  • Growing further apart; diverging. 

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