The word "贬损" is formed by combining the character "贬", which conveys the meaning of belittling or reducing in value, with the character "损", which conveys the meaning of damaging or harming. Together, they create a compound word where "贬" provides the sense of verbal or evaluative downgrading, and "损" contributes the sense of inflicting injury or loss, resulting in a term that specifically denotes the act of disparaging or defaming someone.