Late Latin primogenitura, from Latin primus + genitura birth, from genitus, past participle of gignere
First Known Use: 1602
Preference in inheritance that is given by law or custom to the eldest son and his issue. The motivation for such a practice has usually been to keep the estate of the deceased, or some part of it, whole and intact, and to acknowledge the importance of age-seniority within the social hierarchy. It is no longer a recognized principle of inheritance in most jurisdictions.