Old English æftanweard, from æftan "after" (see aft) + -weard suffix indicating direction (see -ward); nautical use as aftward, then expanded by influence of after; variant afterwards shows adverbial genitive.
1. The world breaks everyone, and afterward, many are stronger at the broken places.
2. They came backstage afterward, cooing and toadying to him.
3. Not long afterward she received five calls in one day.
4. He dissected the plan afterward to learn why it had failed.
5. Let's go to the theatre first and eat afterward.