Lewis Short
(adj.adv.) : per-sanctus, a, um, adj.
* Very sacred or holy: CONIVX, Inscr. Afr. ap. Rénier, 4414.—Hence, adv.: per-sanctē, very sacredly or religiously: dejerare,to swear solemnly,Ter. Hec. 5, 2, 5: jurare,Suet. Tib. 10; id. Ner. 35.
Charlton T. Lewis, Charles Short, A Latin Dictionary