on-target

The word 'on-target' is a modern compound, with its logic transparent in its components. The preposition 'on', with its core sense of position, combines with 'target', which evolved from a term for a small shield used in archery practice to its modern meaning of an object or goal aimed at. The compound thus literally describes the state of being positioned on the intended mark. This literal sense from marksmanship and ballistics seamlessly extended into broader figurative use, describing any idea, prediction, or action that successfully meets its objective with precision.

This is a compound adjective formed from the preposition 'on' and the noun 'target'. 'On' is from Old English 'on', of Germanic origin. 'Target' entered English from Old French 'targette', a diminutive of 'targe' (light shield), likely of Germanic origin. In this compound, 'on' functions to indicate position or condition, and 'target' provides the object of that condition.