akin vs same-blooded

akin

adj
  • Of the same kin; related by blood. 

  • Allied by nature; similar; partaking of the same properties; of the same kind. 

same-blooded

adj
  • Having the same blood or sharing identical blood lineages; consanguineous. 

How often have the words akin and same-blooded occurred in a corpus of books? (source: Google Ngram Viewer )