1. To become thinner or weaker because something is constantly being used over a long period of time. English = wear out.
2. To use something so much that it becomes thin or weak and cannot be used any more; to become useless because something is to thin or weak from frequent use. English = (be) worn out, wear away.
3. To be very tired from having done a lot of work. English = (be) worn out, (be) exhausted.
4. Of a feeling, such as a pain, to disappear slowly. English = wear off.