A more thorough explanation:

profectitius

Profectitius refers to something that comes from an ancestor.

• The family's antique clock was a profectitius heirloom passed down from their great-grandfather.
• The young artist's talent for painting was a profectitius trait inherited from her grandmother.

These examples show how something can be passed down from one generation to another. In the first example, the antique clock was passed down from the great-grandfather to the current family. In the second example, the talent for painting was passed down from the grandmother to the young artist. Both of these things are profectitius because they come from an ancestor.