sŭpĕr-obrŭo (usually separate, sŭ-per obrŭo), ŭi, ŭtum, 3, v. a.,
to cover over , overwhelm (very rare): Tarpeiam ingestis armis, Prop. 4 (5), 4, 91: Hecubam injectis saxis, Aus. Epit. 25.
super-obruō uī, —, ere, to cover over, overwhelm: (alqm) armis, Pr. ...
An Elementary Latin Dictionary