Where does “microtonometry” come from?

microtonometry (English) comes from English tonometry, from English -metry, 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...

microtonometry (English): The measurement of very small pressures

Definitions

  1. The measurement of very small pressures

Ancestry of “microtonometry”, step by step

microtonometry traces back through two separate lines of ancestry.

via English tonometry

StepLanguageWordMeaning
1EnglishtonometryThe measurement of tension or pressure
2English-metryForming nouns relating to measures and...
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...

via English micro

StepLanguageWordMeaning
1EnglishmicroSmall, relatively small; short form of...
2Ancient Greekμικρόςlittle, small
3Proto-Indo-Europeanmēy-soft, tender, dear
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον