Definitions for "patrilineal"
tracing descent through the male line; as, a patrilineal society.
Patrilineal means heredity passes through the male line. This was the case in many occupations, official positions, and administrative roles in ancient Egypt. Marriage was considered extremely important because the family's name or bloodline traveled through the female side. This is why many pharaohs married their sisters or daughters to establish a female royal bloodline.
tracing descent through the father's family line.