nounprō-patrŭusPRO-PATRVVS☆ KeepMeaninga great-grandfather's brotherLewis & Short 1879ModernAs printed, 1879PROPATRUUSLEWIS & SHORTPROPATRUUSprō-patrŭus, i, m., I. a great-grandfather's brother, Dig. 38, 10, 1; 10.Read the whole entry