Artefact (5)
I believe the answer is:
relic
'artefact' is the definition.
(I know that relic is a type of antiquity)
This is all the clue.
(Other definitions for relic that I've seen before include "Overshadow in importance" , "Paper craft" , "Saint's body part?" , "Abandoned item" , "Revered religious remnant" .)