feud

 
Pronunciation: /fjuːd/

noun

  • a prolonged and bitter quarrel or dispute: his long-standing feud with Universal Pictures
  • a state of prolonged mutual hostility, typically between two families or communities, characterized by murderous assaults in revenge for previous injuries: a savage feud over drugs money

verb

[no object]
  • be engaged in a prolonged and bitter quarrel or dispute: Hoover feuded with the CIA for decades

Origin:

Middle English fede 'hostility, ill will', from Old French feide, from Middle Dutch, Middle Low German vēde, of Germanic origin; related to foe