S / sanctŭārĭum
noun

sanctŭārĭum

gen. sanctŭārii · gender neuter · decl. 2nd
sanctus (postAug. for sacrarium).
A place for keeping sacred things; a shrine; sanctuary
A place for keeping sacred things, a shrine, sanctuary, Aggen. Limit. p. 61 Goes.; Vulg. Dan. 8, 13 et saep.—
The private cabinet
The private cabinet of a prince: Mithridatis, Plin. 23, 8, 77, § 149; Sicul. Fl. p. 16 Goes.; Inscr. Orell. 2388.