'projectile' originates from Latin, specifically the word 'proiectus,' where 'pro-' meant 'forward' and 'iacere' meant 'to throw.' 'Driven' comes from Old English 'drifan,' meaning 'to drive or force.'

'projectile' changed from the Latin word 'proiectus' and eventually became the modern English word 'projectile.' 'Driven' evolved from Old English 'drifan' to the modern English 'driven.'

Initially, 'projectile' meant 'something thrown forward,' and 'driven' meant 'forced to move.' Over time, 'projectile-driven' evolved to describe objects propelled by projectiles.