Where does “kepstrum” come from?

kepstrum (English) comes from English cepstrum, from English Spectrum, from Latin spectrum, from Ancient Greek σκοπέω, from Ancient Greek σκοπός, from Ancient Greek σκέπτομαι, from Proto-Hellenic sképťomai, from Proto-Indo-European spéḱyeti — to see, to look, to observe.

kepstrum (English): The theoretical quantity that a cepstrum measures

Definitions

  1. The theoretical quantity that a cepstrum measures

Ancestry of “kepstrum”, step by step

StepLanguageWordMeaning
1EnglishcepstrumThe Fourier transform of the logarithm of a...
2EnglishSpectrumA range; a continuous, infinite, one-dimensional set, possibly bounded by extremes
3Latinspectrumappearance, image; apparition, specter
4Ancient GreekσκοπέωI look, look at, behold; I examine, inspect; 413...
5Ancient Greekσκοπόςwatcher, lookout; protector, guardian; spy, scout
6Ancient GreekσκέπτομαιI look at, examine; I examine, consider, think
7Proto-Hellenicsképťomaito look at
8Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
9Proto-Indo-Europeanspeḱ-to see, to look, to observe
Every word from Proto-Indo-European speḱ-Every word from Proto-Indo-European spéḱyetiEvery word from Proto-Hellenic sképťomai