Definition from Wiktionary, the free dictionary
internecine (not comparable)
- Mutually destructive; most often applied to warfare.
- Internecine strife in Gaza claimed its most senior victim yesterday when militants assassinated one of the most hated security chiefs there.
- Characterized by struggle within a group, usually applied to an ethnic or familial relationship.
- The Mongol people were plagued by internecine conflict until Genghis Khan unified them and focused their aggression outwards on other peoples.
- circa 1900, Mark Twain, Autobiography of Mark Twain, published 2010:
- During the year of my engagement — 1869 — while I was out on the lecture platform, the daily letter that came for me generally brought me news from the front — by which expression I refer to the internecine war that was always going on in a friendly way between these two orthographists about the spelling of words.