The word 'strategical' is built upon the ancient Greek concept of military command, stratēgia, which literally meant "the leading of an army." This term itself fused stratós (army) and agein (to lead). In ancient Greece, a stratēgos was the general, the army-leader. The abstract noun stratēgia evolved from the general's art into the science of planning and directing large-scale military operations. Borrowed into English via Latin and French, the core meaning expanded beyond pure warfare to denote any high-level planning designed to achieve a major objective, with the suffix '-ical' solidifying its adjectival form meaning "pertaining to such planning."

Structure: strat (army) + eg (lead) + ical (adjective suffix) - strat: From Greek stratós, meaning "army, host, expedition." It functions as the core root related to military forces. - eg: From Greek agein, meaning "to lead, drive, bring." It functions as a verbal root indicating action and direction. - ical: A compound English adjectival suffix derived from Latin -ic + -al, meaning "pertaining to, of the nature of."