Where does “parallel universe” come from?

parallel universe (English) comes from English parallel, from Middle French parallèle, from Latin parallēlus, from Ancient Greek παράλληλος, from Ancient Greek ἀλλήλων, from Ancient Greek ἄλλος, from Ancient Greek κρίνω, from Proto-Hellenic kríňňō — to sift, separate, divide.

parallel universe (English): A universe that exists separately alongside...

Definitions

  1. A universe that exists separately alongside...

Ancestry of “parallel universe”, step by step

parallel universe traces back through two separate lines of ancestry.

via English parallel

StepLanguageWordMeaning
1EnglishparallelEqually distant from one another at all points;...
2Middle Frenchparallèle
3Latinparallēlusparallel
4Ancient Greekπαράλληλοςbeside one another, side-by-side; parallel to or...
5Ancient Greekἀλλήλωνreferring back to a plural subject, and...
6Ancient Greekἄλλοςother, another, different, else; in combination...
7Ancient GreekκρίνωTo separate, divide, part, distinguish between...
8Proto-Hellenickríňňō
9Proto-Indo-Europeankrinyéti
10Proto-Indo-Europeankrey-to sift, separate, divide

via English universe

StepLanguageWordMeaning
1EnglishuniverseThe sum of everything that exists in the cosmos,...
2Middle EnglishuniverseThe universe; the stars
3Old Frenchuniversthe whole world; the whole Earth; universal;...
4Latinūniversum
5Latinversusturned, changed, having been turned; towards,...
6Latinvertōto turn, turn oneself, direct one's way, to turn about, turn around, revolve
7Proto-Italicwertōto turn
8Proto-Indo-Europeanwert-to turn, to rotate
9Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel
Every word from Proto-Indo-European krey-Every word from Proto-Indo-European krinyétiEvery word from Proto-Hellenic kríňňō