Where does “photoagonism” come from?

photoagonism (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-.

photoagonism (English): photochemical agonism

Definitions

  1. photochemical agonism

Ancestry of “photoagonism”, step by step

photoagonism 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 agonism

StepLanguageWordMeaning
1EnglishagonismCompetitive struggle; The relationship between an...
2EnglishagonA struggle or contest; conflict; especially...
3Latinagōna contest
4Ancient Greekἀγώνa gathering, an assembly; a contest, competition
5Ancient Greekἀγείρωto collect, gather
6Proto-Hellenicagéřřōto collect, to gather
7Proto-Indo-Europeanh₂ger-to gather; flock, herd
Every word from Proto-Indo-European bʰeh₂-s-ri-Every word from Proto-Indo-European bʰeh₂-Every word from Ancient Greek φωτο-