mercifulness

(noun) the feeling that motivates compassion. Synonyms: mercy.

(noun) a disposition to be kind and forgiving. Synonyms: mercy. Example: "In those days a wife had to depend on the mercifulness of her husband."

(noun) leniency and compassion shown toward offenders by a person or agency charged with administering justice. Synonyms: clemency, mercy. Example: "He threw himself on the mercy of the court."