A more thorough explanation:

Definition: Lucrativa causa is a Latin term used in Roman law to refer to an enrichment that an individual receives without having to pay anything for it. This can include things like inheritances or gifts.

Example: An example of lucrativa causa would be if someone inherited a large sum of money from a distant relative whom they had never met. The recipient did not have to pay anything for this inheritance, but they still received a significant financial benefit.

Explanation: This example illustrates the definition of lucrativa causa because the recipient received an enrichment (the inheritance) without having to pay anything for it. The term is often used in legal contexts to describe situations where someone benefits from the generosity of another person, without having to provide anything in return.