Morality (noun)

1. Principles concerning the distinction between right and wrong or good and bad behavior.
2. The extent to which an action is right or wrong.
3. A particular system of values and principles of conduct.

Origin:

From latin moralitas (manner, character, proper behavior).

Examples:

1. The book explores the morality of war and the ethics of killing.
2. The decision to lie to protect someone's feelings raises questions about the morality of dishonesty.
3. The morality of capital punishment is a topic of heated debate.
4. The religion's morality was based on a strict adherence to the Ten Commandments.
5. The film explores the morality of revenge and justice in a violent society.