Punishing by fine is a form of legal action that involves imposing a monetary penalty on an individual or organization for breaking the law. The two crossword solutions for this term are 'AMERCE' (6 letters) and 'MULCT' (5 letters). AMERCE is derived from the Latin word 'amerciamentum', which means to assess a penalty. MULCT is derived from the Latin word 'multa', which means to impose a fine. Both terms refer to the act of punishing someone by fining them.