Where does “haematachometer” come from?

haematachometer (English) comes from English tachometer, 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...

haematachometer (English): An apparatus for measuring the velocity of the blood; a kind of flowmeter

Definitions

  1. An apparatus for measuring the velocity of the blood; a kind of flowmeter

Ancestry of “haematachometer”, step by step

StepLanguageWordMeaning
1EnglishtachometerA device for measuring the revolutions per minute...
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