The compound "war-fighting" is a modern military term that transparently combines two core concepts of conflict. "War" originates from the Old North French 'werre', which replaced the Old English 'guð' and carries a sense of large-scale, organized strife. "Fighting" derives from the Old English 'feohtan', a common Germanic verb for physical combat. The hyphenated or solid compound form emerged in 20th-century strategic vocabulary to specifically denote the practical, operational aspects of conducting warfare, as opposed to its political or theoretical dimensions. It thus literally means "the fighting of a war," focusing on the execution rather than the declaration or cause.

Structure: war (armed conflict) + fighting (engaging in combat) - war: From Old English 'werre', from a Germanic base meaning 'to confuse, mix up'. In this compound, it functions as a noun denoting a state of armed conflict. - fighting: From the present participle of the verb 'fight', from Old English 'feohtan'. In this compound, it functions as a gerund (verbal noun) meaning the act of engaging in combat.