Where does “spectrogoniometer” come from?

spectrogoniometer (English) comes from English goniometer, from English -meter, from French mètre, from Latin metrum, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

spectrogoniometer (English): A device that measures angles of refraction at a range of wavelengths

Definitions

  1. A device that measures angles of refraction at a range of wavelengths

Ancestry of “spectrogoniometer”, step by step

StepLanguageWordMeaning
1EnglishgoniometerA device used to measure the angles of joints...
2English-meterUsed to form the names of measuring devices
3Frenchmètremetre/meter; first-person singular present...
4Latinmetruma measure
5Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
6Ancient Greek-τρονForms instrument nouns
7Proto-Hellenic-tronForms instrument nouns from verb stems
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...
Every word from Proto-Indo-European -tḗr