alike vs congeneric

alike

adj
  • Having resemblance or similitude; similar; without difference. 

adv
  • In the same manner, form, or degree; in common; equally. 

congeneric

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

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