Where does “isopotentiality” come from?

isopotentiality (English) comes from English potentiality, from English potential, from Late Latin potentialis, from Dutch potentiaal, from German potenzial, from Latin potentialis, from Latin Potentia, from Latin potēns — to drink.

Ancestry of “isopotentiality”, step by step

isopotentiality traces back through two separate lines of ancestry.

via English potentiality

StepLanguageWordMeaning
1EnglishpotentialityThe quality of being, or having potential; An...
2EnglishpotentialCurrently unrealized ability; The gravitational...
3Late Latinpotentialisforce, power
4Dutchpotentiaal
5Germanpotenzialpotential
6Latinpotentialisforce, power
7LatinPotentiasituated in the valley of the Casuentus, now Potenza
8Latinpotēnsbeing able (to), able; potent, mighty, strong, powerful
9Latinpossepresent active infinitive of possum  "to be able...
10Latinpotisable, capable, possible
11Proto-Italicpotismaster, in control of
12Proto-Indo-Europeanpótismaster, ruler; husband
13Proto-Indo-Europeanph₃tis
14Proto-Indo-Europeanpeh₃-to drink

via English ISO

StepLanguageWordMeaning
1EnglishISOThe International Organization for Standardization
2Greekίσοςequal; having equal rights
3Ancient Greekἴσοςequal (to); equivalent (to); consistent (to); agreement (to)
4Ancient Greekδάκτυλοςfinger; measure of length, the breadth of a...
5Hebrewדקלpalm tree; date; dachshund
6GermanDackeldachshund; a similar-looking dog, e.g. a basset...
7GermanDachshunddachshund; a similar-looking dog, e.g. a basset...
8GermanDachsbadger; genitive singular of Dach
9Old High Germandahs
10Proto-West Germanicþahsbadger
11Proto-Germanicþahsuzbadger
12Proto-Indo-Europeantótḱus
13Proto-Indo-Europeantetḱ-to create, produce; to cut, hew
14Proto-Indo-Europeanteḱ-to sire, beget
Every word from Proto-Indo-European peh₃-