A more thorough explanation:

PRIVIGNA

Privigna is a legal term that refers to a stepdaughter, who is the daughter of one's spouse from a previous marriage.

For example, if a man marries a woman who has a daughter from her previous marriage, that daughter is considered the man's privigna. Similarly, if a woman marries a man who has a daughter from his previous marriage, that daughter is also considered the woman's privigna.

Another example could be if a man has a daughter from his previous marriage and he marries another woman, then his daughter becomes the privigna of his new wife.

The examples illustrate how the term privigna is used to refer to a stepdaughter. In each example, the daughter is not biologically related to the person, but is the daughter of their spouse from a previous marriage. The term is commonly used in Roman and civil law to describe the legal relationship between a stepdaughter and her step-parent.