Definition of Atavus | OpenJurist

Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.

Atavus

Ballentine's Law Dictionary

Definition:
The male ascendant in the fifth degree.
Atavus

Black's Law Dictionary: 2nd Edition

Definition:
The great-grandfather's or great-grandmother's grandfather; a fourth grandfather. The ascending line of lineal ancestry runs thus: Pater, Avus, Proavus, Abavus, Atavus, Tritavus. The seventh generation in the ascending scale will be Tritavl-pater, and the next above it Proavi-atavus.