Lewis & Short

histŏrĭŏgrăphus, i, m., = ἱστοριογράφος, a writer of history, historiographer (post-class.), Capitol. Gord. 11, 21; Ambros. Ep. 42, 2; Cassiod. Eccl. Hist. 1, 1; Hier. Galat. 2, 14.