sanctum
/ˈsæŋktəm/noun
(pl. sanctums)
1- a sacred place, especially a shrine within a temple or church圣所（尤指寺院或教堂内的神殿）。
1.1
- figurative a private place from which most people are excluded〈喻〉私室, 密室。
词源
late 16th cent.: from Latin, neuter of sanctus 'holy', from sancire 'consecrate'.