Interbred or Interbreed: How To spell?
The word Interbred is misspelled against Interbreed, a verb meaning "To breed by crossing different stocks of animals or plants."
Interbreed has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings Interbr & d which should not be misspelled with single 'E'
Wrong Spelling:  Interbr-e-d  Correct Spelling:  Interbr-ee-d 
Explore spell check of Interbreed to spell without errors.