crossbred vs crossbreed

crossbred

noun
  • Any organism produced by breeding from two breeds, varieties, or species. 

adj
  • Produced by breeding from two breeds, varieties or species. 

crossbreed

noun
  • An organism produced by mating of individuals of different varieties or breeds. 

verb
  • To mate so as to produce a hybrid; interbreed. 

  • To mate (an organism) with another organism so as to produce a hybrid. 

  • To produce (an organism) by the mating of individuals of different breeds, varieties, or species; hybridize. 

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