"Bless You" 

The phrase "Bless You" can have different meaning back in the day, and it all depended on what that person in that plays believed. This words can have a meaning from protecting a person from evil,protecting a person's soul, luck, and life itself. All of this originated from different places but it is said that the ancient Romans were responsible for this phrases. They started saying "Salve" in a way of blessing someone. But as time went on it change. All of the sayings have a different meaning since "Bless You" was also a way of saying good morning to a person.