Wiktionary
genizah
n. A storeroom located in or by a synagogue where are kept sacred Hebrew books that cannot be used (through damage or heretical teachings), but which cannot be discarded because they contain God's name.
Wikipedia
Genizah
A genizah (or geniza; Hebrew: "storage"; plural: genizot or genizoth or genizahs) is a storage area in a Jewish synagogue or cemetery designated for the temporary storage of worn-out Hebrew-language books and papers on religious topics prior to proper cemetery burial.