A more thorough explanation:

Definition: To fix the amount of a fine or penalty.

Example: In medieval times, a judge might affeer a fine of 10 shillings for a minor offense like stealing a loaf of bread.

Explanation: When someone committed a crime or broke a law in the past, they might be punished with a fine instead of imprisonment or other harsher penalties. The amount of the fine was determined by a judge or other authority figure, who would affeer the penalty based on the severity of the offense and the ability of the offender to pay. For example, if someone stole a small item like a loaf of bread, they might be fined a few shillings. The affeerment process ensured that the punishment was fair and appropriate for the situation.