Abavunculus
A New Law Dictionary and Glossary · Alexander M. Burrill · 1850
A New Law Dictionary and Glossary
Lat. In the civil law. A great great grandmother's brother; {abavicB /rater.) Inst. 3.
6. 4.
Bract, fol.
68 b. Called by Bracton abavunculus magnu8.
Id. ibid.