phantasm
noun
[ ˈfantaz(ə)m ]
• an illusion, apparition, or ghost.
• "the cart seemed to glide like a terrible phantasm"
Origin:
Middle English (in the sense ‘deceptive appearance’): from Old French fantasme, via Latin from Greek phantasma, from phantazein ‘make visible’, from phainein ‘to show’. The change from f- to ph- in the 16th century was influenced by the Latin spelling.
