telestereoscope

Etymology tree
Proto-Indo-European *kʷelh₁-der.
Ancient Greek τῆλε (têle)lbor.
English tele-
Proto-Indo-European *ster-der.
Ancient Greek στερεός (stereós)
Ancient Greek στερεο- (stereo-)der.
English stereo-
Proto-Indo-European *speḱ-
Proto-Indo-European *-yeti
Proto-Indo-European *spéḱyeti
Proto-Hellenic *sképťomai
Ancient Greek σκέπτομαι (sképtomai)
Proto-Indo-European *-ós
Proto-Hellenic *-ós
▲
Ancient Greek -ος (-os)influ.
Ancient Greek -ός (-ós)
Ancient Greek σκοπός (skopós)
Proto-Indo-European *-eti
Proto-Indo-European *-eyéti
Proto-Indo-European *-esyéti
Proto-Indo-European *-éh₁ti
Proto-Indo-European *-yeti
Proto-Indo-European *-éh₁yeti
Proto-Indo-European *-yeti
Proto-Indo-European *-éyeti
Ancient Greek -έω (-éō)
Ancient Greek σκοπέω (skopéō)der.
English -scope
English telestereoscope
From tele- + stereo- + -scope.