Where does “phototrigger” come from?

phototrigger (English) comes from English trigger, from Dutch trekker, from Dutch trekken, from Middle Dutch trecken, from Old Dutch trecken, from Proto-West Germanic *trakkjan, from Proto-Germanic trakjaną, from Proto-Germanic -janą — he, she.

phototrigger (English): A trigger enabled by light; To trigger...

Definitions

  1. A trigger enabled by light; To trigger...

Ancestry of “phototrigger”, step by step

phototrigger traces back through two separate lines of ancestry.

via English trigger

StepLanguageWordMeaning
1EnglishtriggerA finger-operated lever used to fire a gun; A...
2Dutchtrekkerpuller; trigger; tractor
3Dutchtrekkento pull, to draw; to manage, to have the strength...
4Middle Dutchtreckento pull or draw to oneself; to go to another...
5Old Dutchtrecken
6Proto-West Germanic*trakkjanto drag
7Proto-Germanictrakjanąto drag
8Proto-Germanic-janąDerives denominatives from nouns and factitives...
9Proto-Indo-European-yétiCreates intransitive, often deponent,...
10Proto-Indo-Europeanyé-
11Chichewaiyehe, she

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 Chichewa iyeEvery word from Proto-Germanic -janąEvery word from Proto-Indo-European -yéti