Where does “platymeter” come from?

platymeter (English) comes 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, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

platymeter (English): An apparatus for measuring the capacity of...

Definitions

  1. An apparatus for measuring the capacity of...

Ancestry of “platymeter”, step by step

platymeter traces back through two separate lines of ancestry.

via English meter

StepLanguageWordMeaning
1EnglishmeterA device that measures things; A parking meter or...
2Frenchmètremetre/meter; first-person singular present...
3Latinmetruma measure
4Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
5Ancient Greek-τρονForms instrument nouns
6Proto-Hellenic-tronForms instrument nouns from verb stems
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English platy

StepLanguageWordMeaning
1EnglishplatyResembling plates; Of a field semy of plates;...
2EnglishplateA slightly curved but almost flat dish from which...
3Old Frenchplatea flat metal disk; a flat plate of armor
4Medieval Latinplatasilver
5Vulgar Latinplattusflattened; flat; smooth
6Ancient Greekπλατύςwide, broad; flat, level; broad-shouldered
7Proto-Indo-Europeanpléth₂usflat, broad
8Proto-Indo-Europeanpleth₂-flat
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον