coöccurrence vs kindred

coöccurrence

noun
  • The fact of a thing occurring simultaneously with something else; correlation. 

  • An instance of a thing occurring simultaneously with something else; coïncidence. 

kindred

noun
  • Affinity, likeness. 

  • A grouping of relatives. 

  • A household or group following the modern pagan faith of Heathenry or Ásatrú. 

  • Blood relationship. 

  • Distant and close relatives, collectively; kin. 

  • People of the same ethnic descent, not including speaker; brethren. 

  • One who is kindred, literally or figuratively; a kin, kinsman. 

adj
  • Connected, related, cognate, akin. 

  • Of the same nature, or of similar character. 

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