A more thorough explanation:

Term: mansuetus
Definition: Mansuetus is a Latin word that means "tame" or "tamed." It was used in Roman law to describe animals that had been domesticated or trained to be gentle and obedient.
Examples: A horse that has been trained to let people ride it is mansuetus. A dog that has been taught to obey commands is also mansuetus. These animals have been tamed and are no longer wild or dangerous. The term can also be used to describe people who have been calmed down or made less aggressive through training or education. For example, a person who used to be very angry and violent but has learned to control their emotions can be described as mansuetus.