Lewis & Short

2. Scaurus, i, m. [1. scaurus], a frequent surname in the gens Aemilia and Aurelia. So, M. Aemilius Scaurus, whom Cicero defended in an oration, part of which is still extant.
Hence, Scaurĭānus, a, um, adj., relating to Scaurus: oratio, Mart. Cap. 5, § 441.