sŭpĕr-insterno, strāvi, 3, v. a.,
to spread or lay over : tabulas, Liv. 30, 10, 5; Sil. 7, 28; cf. Verg. A. 2, 722.
super-īnsternō or super īnsternō strāvī, —, ere, to spread over, lay thereupon: tabulas, L.: super ...
An Elementary Latin Dictionary