internecine


in·ter·ne·cine

adjective \ˌin-tər-ˈne-ˌsēn, -ˈnē-sən, -ˈnē-ˌsīn, -nə-ˈsēn; in-ˈtər-nə-ˌsēn\

: occurring between members of the same country, group, or organization

Full Definition of INTERNECINE

1
:  marked by slaughter :  deadly; especially :  mutually destructive
2
:  of, relating to, or involving conflict within a group <bitter internecine feuds>

Examples of INTERNECINE

  1. a political party that has suffered because of bitter internecine rivalries

Origin of INTERNECINE

Latin internecinus, from internecare to destroy, kill, from inter- + necare to kill, from nec-, nex violent death — more at noxious
First Known Use: 1663

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