Lewis Short
(adj.adv.) : saeptŭōsus (sēp-), a, um, adj. saeptum
* Obscure: dictio, Pac. or Liv. Andron. ap. Tert. Pall. 3 (Trag. Rel. v. 5 Rib.).— Hence, adv.: saeptŭōsē, obscurely, Liv. Andron. ap. Non. 170, 17.
Charlton T. Lewis, Charles Short, A Latin Dictionary