Lewis & Short

prŏ-nĕpos (scanned prōnĕpos, Sid. Carm. 11 fin.), ōtis, m., a great-grandson, Dig. 38, 10, 1; 38, 10, 14; Cic. Tusc. 3, 12, 26; id. Phil. 13, 7, 15; id. Att. 16, 14, 4; Ov. M. 10, 606.