Atavunculus
Defined in 4 dictionaries — Bouvier (1914), Black's (1910), Black's (1891), Burrill (1850)
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
In Civil Law. A greatgreat-great-grandfather's brother.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
The brother of a great-grandfather's grandmother.
A Dictionary of Law
Henry Campbell Black · 1891
The brother of a great-grandlather’s grandmother.
A New Law Dictionary and Glossary
Alexander M. Burrill · 1850
Lat. A great grandfather's grandmother's brother; (ataviae frater); called by Bracton atavunculus magnus. Bract. fol. 68 b.