A more thorough explanation:

Abishering is a historical term that refers to the freedom or immunity from amercement. It is also known as miskering, mishering, or abishersing.

During medieval times, certain individuals or groups were granted abishering or miskering, which meant they were exempt from paying fines or penalties for certain offenses. For example, nobles or members of the clergy were often granted abishering, while commoners were not.

Another example of abishering can be seen in the Magna Carta, which granted certain liberties and rights to English citizens, including the right to be free from excessive fines or amercements.

These examples illustrate how abishering or miskering was a form of privilege or exemption granted to certain individuals or groups, often based on their social status or position in society.