Where does “luminoscope” come from?

luminoscope (English) comes from English scope, from Italian scopo, from Latin scopus, from Ancient Greek σκοπός, from Ancient Greek σκέπτομαι, from Proto-Hellenic sképťomai, from Proto-Indo-European spéḱyeti, from Proto-Indo-European speḱ- — to see, to look, to observe.

luminoscope (English): Any of various optical devices that have a built-in light source

Definitions

  1. Any of various optical devices that have a built-in light source

Ancestry of “luminoscope”, step by step

luminoscope traces back through two separate lines of ancestry.

via English scope

StepLanguageWordMeaning
1EnglishscopeThe breadth, depth or reach of a subject; a...
2Italianscopoaim, end, goal; first-person singular present...
3Latinscopusa target
4Ancient Greekσκοπόςwatcher, lookout; protector, guardian; spy, scout
5Ancient GreekσκέπτομαιI look at, examine; I examine, consider, think
6Proto-Hellenicsképťomaito look at
7Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
8Proto-Indo-Europeanspeḱ-to see, to look, to observe

via English lumino

StepLanguageWordMeaning
1Englishlumino
Every word from Proto-Indo-European speḱ-Every word from Proto-Indo-European spéḱyetiEvery word from Proto-Hellenic sképťomai