Where does “photomicrometer” come from?

photomicrometer (English) comes from English micrometer, 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...

photomicrometer (English): A micrometer used in photomicrometry

Definitions

  1. A micrometer used in photomicrometry

Ancestry of “photomicrometer”, step by step

photomicrometer traces back through two separate lines of ancestry.

via English micrometer

StepLanguageWordMeaning
1EnglishmicrometerAn SI/MKS unit of measure, the length of one...
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...

via English photo

StepLanguageWordMeaning
1EnglishphotoA photograph; A photo finish; To take a...
2EnglishphotographyThe art and technology of producing images on...
3Frenchphotographiephotography; photograph
4Ancient Greekφωτο-
5Ancient GreekφῶςAttic form of φᾰ́ος
6Proto-Hellenicpʰáos
7Proto-Indo-Europeanbʰéh₂os
8Proto-Indo-Europeanbʰeh₂-to shine, glow light; to speak, say
9Proto-Indo-Europeanbʰeh₂-s-ri-
Every word from Proto-Indo-European -tḗr