Where does “isotopic” come from?

Isotopic derives from English isotopy, from Ancient Greek τόπος meaning "place," ultimately from Proto-Indo-European -kos.

isotopic (English): of, or relating to isotopes; Of two presemifields...

Definitions

  1. of, or relating to isotopes; Of two presemifields...

Ancestry of “isotopic”, step by step

isotopic traces back through two separate lines of ancestry.

via Catalan isòtop

StepLanguageWordMeaning
1Catalanisòtopisotope
2Catalaniso-iso
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

via English isotope

StepLanguageWordMeaning
1EnglishisotopeAny of two or more forms of an element where the...
2Englishiso-equal; forms terms relating to isomers; forms...
3Ancient Greekῐ̓́σοςequal
4Ancient Greekβάροςweight, burden, load; grief, sorrow; plenty
5Ancient Greekβαρύςheavy, weighty; heavy, burdensome, oppressive;...
6Proto-Hellenicgʷarusheavy
7Proto-Indo-Europeangʷréh₂usheavy
8Proto-Indo-European-usForms adjectives from Caland system roots

Words derived from “isotopic

Every word from Proto-Indo-European teḱ-Every word from Proto-Indo-European tetḱ-Every word from Proto-Indo-European tótḱus