half-blooded vs half-bred

half-blooded

adj

  • Having only one parent from a known pedigree. 

  • Having only one parent in common. 

  • Having parents of differing ethnicities. 

half-bred

adj

  • Imperfectly acquainted with the rules of good breeding; not well trained. 

noun

  • A half-blooded animal. 

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