blood feud

• Audio (Southern England):

  (file)

blood feud (plural blood feuds)

1. A protracted and bitter violent feud between clans, families, factions, etc.; a vendetta.
   • 1912, Arthur Conan Doyle, The Lost World […], London; New York, N.Y.: Hodder and Stoughton, →OCLC:

     "I should have remembered that these people have long memories for blood-feuds, and have been more upon my guard."