Where does “spectrum” come from?

spectrum (Latin) comes from Ancient Greek σκοπέω, 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.

spectrum (Latin): appearance, image; apparition, specter

Definitions

  1. appearance, image; apparition, specter

Ancestry of “spectrum”, step by step

spectrum traces back through two separate lines of ancestry.

via Ancient Greek σκοπέω

StepLanguageWordMeaning
1Ancient GreekσκοπέωI look, look at, behold; I examine, inspect; 413...
2Ancient Greekσκοπόςwatcher, lookout; protector, guardian; spy, scout
3Ancient GreekσκέπτομαιI look at, examine; I examine, consider, think
4Proto-Hellenicsképťomaito look at
5Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
6Proto-Indo-Europeanspeḱ-to see, to look, to observe

via Latin speciō

StepLanguageWordMeaning
1Latinspeciōto observe, watch, look at
2Proto-Italicspekjōto observe, to see

Words derived from “spectrum

Every word from Proto-Indo-European speḱ-