Where does “isospectrality” come from?

isospectrality (English) comes from English ISO, from Greek ίσος, from Ancient Greek ἴσος, from Ancient Greek δάκτυλος, from Hebrew דקל, from German Dackel, from German Dachshund, from German Dachs — to sire, beget.

isospectrality (English): The state or condition of being isospectral

Definitions

  1. The state or condition of being isospectral

Ancestry of “isospectrality”, step by step

isospectrality traces back through two separate lines of ancestry.

via English ISO

StepLanguageWordMeaning
1EnglishISOThe International Organization for Standardization
2Greekίσοςequal; having equal rights
3Ancient Greekἴσοςequal (to); equivalent (to); consistent (to); agreement (to)
4Ancient Greekδάκτυλοςfinger; measure of length, the breadth of a...
5Hebrewדקלpalm tree; date; dachshund
6GermanDackeldachshund; a similar-looking dog, e.g. a basset...
7GermanDachshunddachshund; a similar-looking dog, e.g. a basset...
8GermanDachsbadger; genitive singular of Dach
9Old High Germandahs
10Proto-West Germanicþahsbadger
11Proto-Germanicþahsuzbadger
12Proto-Indo-Europeantótḱus
13Proto-Indo-Europeantetḱ-to create, produce; to cut, hew
14Proto-Indo-Europeanteḱ-to sire, beget

via English spectrality

StepLanguageWordMeaning
1EnglishspectralityThe quality of being spectral or ghostly;...
2EnglishspectralOf, or pertaining to, spectres; ghostly; Of, or...
3EnglishspectreBritain standard spelling of specter
4Frenchspectreghost, specter; spectrum
5Latinspectrumappearance, image; apparition, specter
6Ancient GreekσκοπέωI look, look at, behold; I examine, inspect; 413...
7Ancient Greekσκοπόςwatcher, lookout; protector, guardian; spy, scout
8Ancient GreekσκέπτομαιI look at, examine; I examine, consider, think
9Proto-Hellenicsképťomaito look at
10Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
11Proto-Indo-Europeanspeḱ-to see, to look, to observe
Every word from Proto-Indo-European teḱ-