(n.) The infliction of a penalty at the discretion of the court; also, a mulct or penalty thus imposed. It differs from a fine,in that the latter is, or was originally, a fixed and certain sum prescribed by statue for an offense; but an amercement is arbitrary. Hence, the act or practice of affeering. [See Affeer.]
AMERCEMENT
Meaning of AMERCEMENT in English
Webster's English dictionary. Английский словарь Webster. 2012