English
electromicroscope
From electro- + microscope.
Formed from electro- + microscope
Proto-Indo-European *speḱ- ‘to see, to look, to observe’
…
Ancient Greek σκοπός ‘watcher, lookout’
Ancient Greek σκοπέω ‘to look, look at, behold’
Latin mīcroscopium
Italian microscopio
English microscope
Today it means
noun Electron microscope.
Language periods are conventional ranges, not dates for this word.
Etymograph / electromicroscope