Where does “microphot” come from?

microphot (English) comes from English phot, from English photograph, from English photo-, from Ancient Greek φωτο-, from Ancient Greek φῶς, from Proto-Hellenic pʰáos, from Proto-Indo-European bʰéh₂os, from Proto-Indo-European bʰeh₂-.

microphot (English): One millionth of a phot unit of illuminance

Definitions

  1. One millionth of a phot unit of illuminance

Ancestry of “microphot”, step by step

microphot traces back through two separate lines of ancestry.

via English phot

StepLanguageWordMeaning
1EnglishphotA photometric unit of illuminance, or luminous...
2EnglishphotographA picture created by projecting an image onto a...
3Englishphoto-light, electromagnetic radiation; photography
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-

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 bʰeh₂-s-ri-
microphot — Etymology, Origin & Word History | Etymology Explorer