Lewis Short
(verb) : sŭpĕr-instrŭo, no
* Perf., ctum, 3, , to build over or upon; to arrange over one another: ut concameratis superinstruas,Cod. Just. 8, 10, 1: ordines vasorum in altitudinem,Col. 9, 7, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary