Feud
121be at feud with — carry on a quarrel with, be in conflict with …
122blood feud — fight between members of a family …
123family feud — hostility and enmity within a family …
124blood feud — noun a lengthy conflict between families involving a cycle of retaliatory killings …
125blood feud — noun (C) a quarrel that lasts for many years between people or families and in which each side murders or injures members of the other side …
126blood feud — /ˈblʌd fjud/ (say blud fyoohd) noun → vendetta …
127blood feud — Avenging the killing of kin on the person who killed him, or on his family …
128impartible feud — /impartabal fyiiwd/ See feudum individuum …