congeneric vs connate

congeneric

adj
  • Of or pertaining to congeners (organisms of the same genus) 

connate

adj
  • United with other organs of the same kind (for example sepals connate with sepals, petals connate with petals, or stamens with stamens). 

  • Trapped within a rock at the time of its formation (especially of water or petroleum). 

  • Of the same or a similar nature; proceeding from the same stock or root. 

  • Inborn. 

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