Etymology Explorer › English

Where does “photoentrainment” come from?

photoentrainment (English) comes from English entrainment, 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.

photoentrainment (English): The entrainment of an organism's circadian rhythm...

Definitions

  1. The entrainment of an organism's circadian rhythm...

Ancestry of “photoentrainment”, step by step

StepLanguageWordMeaning
1EnglishentrainmentAny of several processes in which a solid or...
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
Every word from Proto-Indo-European dʰregʰ- →