English
magnetoscope
From magneto- + -scope.
Proto-Indo-European *speḱ- ‘to see, to look, to observe’
…
Ancient Greek σκέπτομαι ‘to look at, examine’
Ancient Greek σκοπός ‘watcher, lookout’
Late Latin scopus
Italian scopo ‘purpose’
English scope
Today it means
noun An instrument for detecting the presence (but not the intensity) of magnetism.
Language periods are conventional ranges, not dates for this word.
Etymograph / magnetoscope