Source : Webster's Revised Unabridged Dictionary (1913)

Reliquary \Rel"i*qua*ry\ (r?l"?-kw?-r?), n.; pl. {-ries}
   (-r[i^]z). [LL. reliquiarium, reliquiare: cf. F. reliquaire.
   See {Relic}.]
   A depositary, often a small box or casket, in which relics
   are kept.

Source : WordNet®

reliquary
     n : a container where religious relics are stored or displayed
         (especially relics of saints)