atavus

From at + avus (“grandfather”).

• (Classical) IPA^(key): /ˈa.ta.u̯us/, [ˈät̪äu̯ʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈa.ta.vus/, [ˈäːt̪ävus]

atavus m (genitive atavī); second declension

1. ancestor
2. great-great-great-grandfather

Second-declension noun.

• abavus
• avus

• “atavus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “atavus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• atavus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• atavus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.