Where does “photoentrainable” come from?

photoentrainable (English) comes from English entrainable, from English entrain, from English train, from Middle English train, from Old French train, from Old French traïner, from Vulgar Latin traginare, from Latin tragēre — to run.

photoentrainable (English): entrainable by means of light

Definitions

  1. entrainable by means of light

Ancestry of “photoentrainable”, step by step

photoentrainable traces back through two separate lines of ancestry.

via English entrainable

StepLanguageWordMeaning
1EnglishentrainableCapable of being entrained, or brought into a...
2EnglishentrainTo draw along as a current does; To suspend small...
3EnglishtrainElongated portion; Connected sequence of people...
4Middle Englishtrain
5Old Frenchtraina delay, a drawing out
6Old FrenchtraïnerAlternative form of trainer; to pull out, to draw
7Vulgar Latintraginarepresent active infinitive of *traginō
8Latintragēre
9Latintraheresecond-person singular future passive indicative...
10LatintrahoI drag, pull; I trail; I extract, withdraw
11Proto-Italictraɣō
12Proto-Indo-Europeantregʰ-to drag, pull?; to run, walk
13Proto-Indo-Europeandʰregʰ-to run

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 dʰregʰ-