internecine Meaning, Definition & Usage

  1. adjective satellite (of conflict) within a group or organization
    • an internecine feud among proxy holders
  2. adjective satellite characterized by bloodshed and carnage for both sides
    • internecine war

WordNet

In`ter*ne"cine adjective
Etymology
L. internecinus deadly, murderous, fr. internecare to kill, to slaughter; inter between + necare to kill; akin to Gr. dead. See Necromancy.
Definitions
  1. Involving, or accompanied by, mutual slaughter; mutually destructive.
    Internecine quarrels, horrible tumults, stain the streets with blood. Motley.

Webster 1913