Lewis Short
(adjective) : sŭperfŏrānĕus, a, um, superforum
* Superfluous, unnecessary (late Lat.): labor,Symm. Ep. 3, 48 (al. supervacaneus): super his plura replicare, superforaneum puto,Sid. Ep. 4, 11 med.
Charlton T. Lewis, Charles Short, A Latin Dictionary