Where does “hydrotachymètre” come from?

hydrotachymètre (French) comes from French tachymètre, from French -mètre, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

hydrotachymètre (French): hydrotachymeter

Definitions

  1. hydrotachymeter

Ancestry of “hydrotachymètre”, step by step

StepLanguageWordMeaning
1Frenchtachymètretachymeter; speedometer
2French-mètre-meter
3Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
4Ancient Greek-τρονForms instrument nouns
5Proto-Hellenic-tronForms instrument nouns from verb stems
6Proto-Indo-European-tromForms nouns denoting a tool or instrument
7Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον