Lewis Short
(verb) : sŭper-strŭo, xi, ctum, 3
* To build upon or over, to superstruct (postAug. and very rare): ligneam compagem,Tac. A. 4, 62: moles,Sen. Contr. 1 prooem. fin.: quidquid his (fundamentis) superstruxeris, corruet,Quint. 1, 4, 5: desuper pulvillis superstruunt,App. M. 10, p. 248, 27.
Charlton T. Lewis, Charles Short, A Latin Dictionary