Where does “photocycle” come from?

photocycle (English) comes from English photo, from English photography, from French photographie, from Ancient Greek φωτο-, from Ancient Greek φῶς, from Proto-Hellenic pʰáos, from Proto-Indo-European bʰéh₂os, from Proto-Indo-European bʰeh₂-.

photocycle (English): Any of several biochemical cycles, involving...

Definitions

  1. Any of several biochemical cycles, involving...

Ancestry of “photocycle”, step by step

photocycle traces back through two separate lines of ancestry.

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-

via English cycle

StepLanguageWordMeaning
1EnglishcycleAn interval of space or time in which one set of...
2Catalanciclecycle
3Latincyclusa circle; a cycle, recurring period; a branding...
4Ancient Greekκύκλοςcircle, ring; Any circular object, such as a...
5Proto-Indo-Europeankʷékʷloswheel; circle
6Proto-Indo-Europeankʷel-to turn
Every word from Proto-Indo-European bʰeh₂-s-ri-Every word from Proto-Indo-European bʰeh₂-Every word from Ancient Greek φωτο-