Mercy
Part of speech: noun
Definition: relenting; forbearance to cause or allow harm to another forgiveness or compassion, especially toward those less fortunate. A tendency toward forgiveness, pity, or compassion Instances of forebearance or forgiveness. A blessing, something to be thankful for.
Example sentence: Computers are like Old Testament gods; lots of rules and no mercy.
Mercifulness
Part of speech: noun
Definition: The state of being merciful; mercy.