thēsaurārĭus — Lewis & Short
thēsaurārĭus, a, um, adj.thesaurus,
I of or belonging to treasure:
fures,treasure-thieves, Plaut. Aul. 2, 8, 25.—Subst.: thēsaurārĭum, i, n., treasure (late Lat.), Cassiod. in Psa. 21, 31.