avonculus
From LSJ
μή μοι θεοὺς καλοῦσα βουλεύου κακῶς· πειθαρχία γάρ ἐστι τῆς εὐπραξίας μήτηρ, γυνὴ Σωτῆρος· ὦδ᾽ ἔχει λόγος → When you invoke the gods, do not be ill-advised. For Obedience is the mother of Success, wife of Salvation—as the saying goes.
Latin > English
avonculus avonculi N M :: maternal uncle, mother's brother, mother's sister's husband; great uncle
Latin > German (Georges)
avonculus, s. avunculus.
Latin > French (Gaffiot 2016)
ăvoncŭlus, v. avunculus.