Where does “extraspectral” come from?

extraspectral (English) comes from English spectral, from English spectre, from French spectre, from Latin spectrum, from Ancient Greek σκοπέω, from Ancient Greek σκοπός, from Ancient Greek σκέπτομαι, from Proto-Hellenic sképťomai — to see, to look, to observe.

extraspectral (English): Producible by a combination of wavelengths but...

Definitions

  1. Producible by a combination of wavelengths but...

Ancestry of “extraspectral”, step by step

extraspectral traces back through two separate lines of ancestry.

via English spectral

StepLanguageWordMeaning
1EnglishspectralOf, or pertaining to, spectres; ghostly; Of, or...
2EnglishspectreBritain standard spelling of specter
3Frenchspectreghost, specter; spectrum
4Latinspectrumappearance, image; apparition, specter
5Ancient GreekσκοπέωI look, look at, behold; I examine, inspect; 413...
6Ancient Greekσκοπόςwatcher, lookout; protector, guardian; spy, scout
7Ancient GreekσκέπτομαιI look at, examine; I examine, consider, think
8Proto-Hellenicsképťomaito look at
9Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
10Proto-Indo-Europeanspeḱ-to see, to look, to observe

via English extra

StepLanguageWordMeaning
1EnglishextraBeyond what is due, usual, expected, or...
2EnglishextraordinaryNot ordinary; exceptional; unusual; Remarkably...
3Latinextraordināriusextraordinary
4Latinōrdinem
5Middle Low Germanorden
6Latinōrdināre
7Latinōrdōa methodical series, arrangement, or order; regular line, row, or series
8Proto-Italicored(h)-to arrange
Every word from Proto-Indo-European speḱ-
extraspectral — Etymology, Origin & Word History | Etymology Explorer