Lewis & Short

sŭperfĭcĭālis, e, adj. [superficies], of or belonging to the surface, superficial (late Lat.).

  1. I. Lit.: numerus, denoting the superficial contents, Cassiod. Arithm. p. 555; Isid. 3, 7, 4.
  2. II. Trop., superficial: officia, Tert. adv. Marc. 4, 28.