An Etymological Dictionary of Astronomy and Astrophysics

A state of armed conflict between states, or between groups within states.

Etymology (EN): From M.E. werre, from O.E. werre, wyrre, from Old Northern Fr. werre, akin to O.H.G. werra “confusion, strife, quarrel,” Du. war “confusion, disarray,” O.E. wyrsa, wiersa “worse,” O.Norse verri “worse; confounded;” ultimately from PIE *wers- “to confuse, mix up.”

Etymology (PE): Jang, from Mid.Pers. jang “struggle, battle, fight.”