Phylactery

Phylactery or Phylacterium ( ancient Greek φυλακτήριον phylactery , German , custody, or retardant ' , of φυλάσσω phylássō , German , guard, preserve' derived) denotes

• a container worn on the body (e.g. around the neck) for magical protective devices and relics
• the tefillin worn by Jews during prayer
• In the pen & paper role-playing game Dungeons & Dragons, a magical vessel (sometimes also called a phylacter ) in which a lich (undead) stores his soul in order to become immortal

This is a disambiguation page for differentiating between several terms identified with the same word.