Where does “photoequilibrium” come from?

photoequilibrium (English) comes from English equilibrium, from Latin æquilībrium, from German Gleichgewicht, from German gleich, from Middle High German gelīch, from Old High German gilīh, from Proto-West Germanic galīk, from Proto-Germanic galīkaz — to bind, tie.

photoequilibrium (English): photochemical equilibrium

Definitions

  1. photochemical equilibrium

Ancestry of “photoequilibrium”, step by step

photoequilibrium traces back through two separate lines of ancestry.

via English equilibrium

StepLanguageWordMeaning
1EnglishequilibriumThe condition of a system in which competing...
2LatinæquilībriumA level or horizontal position, equilibrium
3GermanGleichgewichtequilibrium; balance, poise
4Germangleichequal; same; very similar; same; identical
5Middle High Germangelīch
6Old High Germangilīhequal
7Proto-West Germanicgalīkalike, similar
8Proto-Germanicgalīkazalike, similar; equal
9Proto-Indo-Europeanleyǵ-to bind, tie

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 leyǵ-