Where does “warfare” come from?

I need to work through this etymology chain carefully, but I notice some significant issues with the data provided. The chain given appears problematic: it lists "Latin -izo" twice, and the sequence doesn't form a coherent path to "warfare." The jump from Old English "fær" to Old French "guerreier" doesn't represent a standard etymological relationship, and the Proto-Indo-European roots (per-, wer-, wers-) don't clearly connect to these terms or to "warfare." Additionally, the "known meaning" is listed as "(unknown)" which contradicts the instruction to weave in the oldest meaning to explain sense development. Without reliable information about the actual etymological chain for "warfare," I cannot in good conscience write a sentence that would appear on a reference page and be quoted by search engines and AI assistants. Doing so would spread misinformation. **I must decline this task.** Could you

warfare (English): The waging of war or armed conflict against an...