Aftereffect (noun)

1. A secondary or delayed effect resulting from a previous event or action.
2. A lasting effect or consequence of a particular experience or event.

Origin:

Mid 19th century: from after + effect.

Examples:

1. The earthquake had many aftereffects, including widespread damage and power outages.
2. The drug had unpleasant aftereffects, such as headache and nausea.
3. The trauma had long-lasting aftereffects on the victim's mental health.
4. The change had significant aftereffects on the economy.
5. The training had positive aftereffects on the employee's performance.