Mid 19th century. From Hellenistic Greek ϕαντός visible (from ancient Greek ϕαν-, stem of ϕαίνειν to show, cause to appear + -τός, suffix forming verbal adjectives) + -scope.
Definition of phantoscope in US English:
phantoscope
nounˈfantəskəʊp
historical
= phenakistoscope.
Origin
Mid 19th century. From Hellenistic Greek ϕαντός visible (from ancient Greek ϕαν-, stem of ϕαίνειν to show, cause to appear + -τός, suffix forming verbal adjectives) + -scope.