inbreed

 
Pronunciation: /ɪnˈbriːd/

verb (past and past participle inbred)

[no object] (often as noun inbreeding)
  • breed from closely related people or animals, especially over many generations: persistent inbreeding has produced an unusually high frequency of sufferers from this disease if they are allowed to inbreed even further this can eventually spoil the species [with object]: Herbie likes to inbreed his family of pigeons