Answer: grail

AnswerCrossword Clue
GRAIL

Holy ... (chalice)

GRAIL

Holy object

GRAIL

Last Supper cup

GRAIL
Chalice
GRAIL
Quest for Galahad
GRAILTreasured cup
GRAILHoly quest object
GRAILPot of gold, so to speak
GRAILChalice's cousin
GRAIL"Monty Python and the Holy ..."
GRAILQuest object
GRAILHoly chalice
GRAILKnights' quest
GRAILHoly ...
GRAILLast Supper chalice
GRAILLast Supper vessel
GRAILCup sought by Indiana Jones
GRAILArthurian quest item
GRAILHoly quest vessel
GRAILHoly ..
GRAILGalahad's quest
GRAILParsifal quest
GRAILSought-for object
GRAILIndiana Jones quest
GRAILUltimate ideal
GRAILGalahad quest
GRAILObject of knightly quests
GRAILObject of Sir Galahad's quest
GRAILObject of a medieval knight's quest
GRAILItem guarded by the Fisher King
GRAILObject of an extended quest
GRAILThe Sangreal.
GRAILObject of Galahad's quest.
GRAILChalice.
GRAILGalahad's quest.
GRAILSubject of the Quest.
GRAILSubject of many medieval legends.
GRAILHoly object.
GRAILObject of the quest.
GRAILObject of long search.