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Where does “hydrotachymeter” come from?

hydrotachymeter (English) comes from English tachymeter, 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...

hydrotachymeter (English): An instrument used to measure the velocity of...

Definitions

  1. An instrument used to measure the velocity of...

Ancestry of “hydrotachymeter”, step by step

StepLanguageWordMeaning
1EnglishtachymeterA surveying instrument for quickly finding...
2EnglishmeterA device that measures things; A parking meter or...
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 →