Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. vărĭānus, a, um, adj. [varius], divers-colored, variegated: uvae, a particular kind so called, Plin. 14, 2, 4, § 29.
2. Vārĭānus, a, um, v. 3. Varus.
3. Vārus, i, m., a surname, esp. in the gens Quintilia; e. g. P. Quintilius Varus, defeated by Arminius, Vell. 2, 117; Suet. Aug. 23; id. Tib. 17; Tac. A. 1, 3; 1, 43; 1, 55; 1, 60 al.
Hence, Vārĭānus, a, um, adj., of or belonging to a Varus, Varian: clades, Suet. Aug. 23; 49; id. Tib. 17; 18; id. Calig. 3; 31.