The Greek verb aphikneomai means to arrive at, to come to, or to reach a destination — completing a journey. A compound of apo (from) and hikneomai (to come, reach), emphasizing completion. A hapax legomenon, appearing only in Romans 16:19, where Paul notes the Romans' obedience has 'reached' everywhere.
Romans 16:19: 'Everyone has heard about your obedience, so I rejoice because of you.' The Romans' faithful living has arrived — it has traveled beyond their local community to become a testimony throughout the known world. Faithful Christian life radiates outward. Paul's joy is that obedience is not private but public witness — the gospel embodied and carried to the ends of the earth.