abpatruus
From LSJ
Latin > English (Lewis & Short)
ab-pătrŭus: i, m.,
I a great-greatgrand-uncle on the father's side; also called patruus maximus, Dig. 38, 10, 3 al.
Latin > French (Gaffiot 2016)
abpatrŭus, ī, m., frère du trisaïeul : Dig.
Latin > German (Georges)
ab-patruus, ī, m. (= avi patruus), der Bruder des Ururgroßvaters (abavi), ICt.