reliquary
The origin and history of reliquary.
Etymology
Borrowed from Middle French reliquaire (modern French reliquaire), from Late Latin reliquiarium, from rēliquia (“a relic”) (English relic), noun use of reliquus (“abandoned, left behind, relict”), from relinquō (“to relinquish”), from re- (“again”) and linquō (“to leave”), from Proto-Indo-European *leykʷ-.